W9127820R0069 Corrected Amendment 0002 w attachments.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

1. CONTRACT ID CODE PAGE OF PAGES

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W9127820R0069

X 9B. DATED (SEE ITEM 11)

22-May-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The subject solicitation for: Unit 1 and 2 Turbine/Generator Rehab at Philpott Powerhouse in Basset, VA

Is modified in the following: REFER TO THE ENCLOSED ADDITIONAL SPECIFICATIONS AND OR CHANGE FOR AMENDMENT NO. 0002

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE

DATE

SEPT 30, 2020

CODE

ENDIST MOBILE CONTRACTING DIVISION

109 ST JOSEPH ST

MOBILE AL 36602

W91278 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

k5ctcjar Cross-Out

The subject solicitation for: Unit 1 and 2 Turbine/Generator Rehab at Philpott Powerhouse in Basset, VA

Amendment No. 0002 is issued to provide for the following:

The items listed below are added or revised in the solicitation. Added sections are hereby made a part of the solicitation and are to be inserted in the proper numerical/alphabetical sequence.

Section 00 11 00 PROPOSAL SUBMISSION REQUIREMENTS AND INSTRUCTIONS

The submission method is revised to the following instructions:

3.1 Submit the electronic proposal package to the U.S. Army Corps of Engineers through the

DoD SAFE (Secure Access File Exchange) Service.

***Important Instructions*** Proposers SHALL request a Drop-off link from the

Government in order to upload files to the DoD SAFE. The URL is https://safe.apps.mil.

The email requesting the Drop-off link shall be sent to CTHYDRO-

PROPOSALS@usace.army.mil. The request email should include the company name, point of contact name and valid email address. A DoD SAFE Drop-off link may be requested up to 13 days before the proposal due date and will remain valid through the proposal due date. It is the proposer's responsibility to request the link and upload the proposal. Waiting until the proposal due date to request the link may jeopardize successful proposal submission.

4.5 Volume I - Tab C, Factor 4 - Small Business Approach

4.5.2 (1) The Total Small Business Participation Goal is revised from 20% to 5%.

The following attachments are incorporated into subject solicitation.

1. Philpott Amendment 0002 Technical Changes 9/28/2020

2. Section 00 11 00 Revised 9/24/2020

3. Section 00 12 00 Revised 9/24/2020

4. Philpott Complete Specifications – Amendment 0002- 20200928

5. Amendment 0002 End of Section Appendices

6. Additional Reference Drawings (46310, 46374, 46382)

09/28/20

Philpott – Amendment 0002 – Technical Changes

9/28/2020

SECTION 00 11 00

• Para. 4.2

That is “recent”; one that has been completed within ten (10) years of the solicitation issue date, or one where the ongoing contract is at least 75% complete (measured by performance period days) as of the solicitation issue date and one (1) Unit has been 100% completed to quality. Offerors are responsible for providing start and completion dates for each completed project, or the start and scheduled completion dates for projects currently under construction.

• Para 4.2.1.3 –

D = Reference Diameter in inches feet

Corrected equation 𝑆𝑝𝑒𝑐𝑖𝑓𝑖𝑐 𝑆𝑝𝑒𝑒𝑑 = 𝑁𝑠 = [𝑁 × 𝐻𝑃0.5]/𝐻1.25

Corrected equation 𝐷𝑖𝑠𝑐ℎ𝑎𝑟𝑔𝑒 𝐹𝑎𝑐𝑡𝑜𝑟 (𝑄11) = 𝑄/(𝐷2 ∗ 𝐻0.5)

• Para. 4.2.3.3

If the JV Offeror has not previously performed as a JV, each member of the JV may submit recent, relevant projects performed in their individual capacities. The total number of projects submitted by the JV shall be no more than eight (8). The intent is that each member may submit individual projects so the requirements for past performance examples are met. For example, one member may only have experience on generators and one on turbines which together would meet the requirements but separately would not.

• Para 4.3.1.1 (2)(ii)

Submit one (1) Hill Chart for an existing turbine design submitted with the Offeror’s past performance projects, and provide a brief narrative (400 words or less) describing the methods used to adjust the known Hill Chart to the predicted Hill Chart for Philpott. A Hill Chart submitted for past performance may be used.

• Para. 4.5.2 (1): Total Small Business Participation Goal changed from “20%” to “5%”.

• Attachment 4 Guarantee Tables: Updated tables to provide additional information

SECTION 00 12 00

• Para 3.2 (1) (ii)

Where the word “recent” appears, it is understood to mean designing, manufacturing, testing, and installing multi-turn coil type hydro-generator stator windings and stator cores, rotor poles, and turbine runner, inspecting and testing field windings, including disassembly, reassembly, and post reassembly testing of the hydro-generators and turbine type project for which the contract consisting of one (1) hydro-generator Unit is 100% complete or the contract consisting of multiple hydro-generator Units is 75% complete and one (1) Unit was 100% completed to quality. All project examples are to have been completed within 10 years of the RFP issue date.

• Para. 3.2 (6)

Offerors with little or no relevant past performance will not be evaluated favorably or unfavorably for Factor 1. However, such a proposal will be rated neutral confidence, and thus may not represent the most advantageous proposal to the Government when compared to the proposals of other

Offerors with recent/relevant past performance. An Offeror with a deficiency as defined by FAR

15.001 will not be considered for a contract award. Any offer that receives a No Confidence rating may still be considered for award.

• Para. 3.8.1 (2)

The evaluators will identify the RFP requirement, and describe why a deficiency or deficiencies exist in the proposal. All deficiencies discovered will be identified to the Offeror during discussions, if conducted, and in the debriefing. Failure by an Offeror to rectify deficiencies deemed essential will preclude award action to that Offeror.

• Para. 6.2

The non-price factors are considered more important than price in relative importance. As differences in factor ratings and relative advantages and disadvantages become less distinct, difference in price may become the discriminating factor in determining the most advantageous proposal. Conversely, as differences in prices become less distinct, differences in ratings and relative advantages and disadvantages between proposals are determinative. A contract will not be awarded to an offeror with a deficiency as defined in FAR 15.001. A contract will not be awarded to an

Offeror with an UNACCEPTABLE rating.

SPECIFICATIONS

• Sec 01 11 10.00 26 - Para. 1.1.1

Asbestos abatement shall be performed as specified in Section 01 57 20.00 36, Environmental

Protection, and Section 02 82 14.00 25, Asbestos Hazard Control Activities.

• Sec 01 35 29.00 25 - 3.1.3

The design should have identified materials such as PCB, lead paint, and friable and non-friable asbestos. If additional material, not indicated, that may be hazardous to human health upon disturbance during construction operations is encountered, stop that portion of work and notify the

Contracting Officer immediately. Upon the direction of the Contracting Officer, retrieve samples, have them tested to determine if the material is hazardous, and submit results to the Contracting

Officer. If material is not hazardous or poses no danger, the Government will direct the Contractor to proceed without change. If material is hazardous and handling of the material is necessary to accomplish the work, the Government will issue a modification pursuant to "FAR 52.243-4, Changes" and "FAR 52.236-2, Differing Site Conditions" allowing the contractor to either safely remove the material themselves, or subcontract the removal to a third party.

• Section 01 57 20.00 25 - 3.5.5

This contract requires work to be performed on a building constructed during the time period that asbestos-containing materials (ACM) were commonly used. The potential exists for the discovery of asbestos-containing materials. If a suspect asbestos-containing material is discovered by the

Contractor, then the Contractor shall stop work and notify the onsite Government’s Representative and Contracting Officer and wait for further instruction. Upon the direction of the Contracting

Officer, retrieve samples, have them tested to determine if the material is hazardous, and submit results to the Contracting Officer. If material is not hazardous or poses no danger, the Government will direct the Contractor to proceed without change. If material is hazardous and handling of the material is necessary to accomplish the work, the Government will issue a modification pursuant to

"FAR 52.243-4, Changes" and "FAR 52.236-2, Differing Site Conditions" allowing the contractor to either safely remove the material themselves, or subcontract the removal to a third party. Suspect

ACM shall not be abraded, sanded, cut, or damaged in anyway, so as to degrade it and promote the release of asbestos fibers.

• Section 02 82 14.00 10 o Para 1.3

Specifically, this specification addresses the encounter of previously unknown asbestos containing material located in the facility and located in the equipment within the facility. Units

1 and 2 are expected to be free of asbestos with the exception of the brake pads and rotor poles. A test report dated March 14, 2019 states that the generator stator windings do not contain asbestos and another report dated April 18, 2019 states that no asbestos was detected in the brake dust for all Units at Philpott. It did report that the brake pads contained 15% chrysotile asbestos however, the brake pads will be removed from Units 1 and 2 and disposed of accordingly prior to disassembly of the units by the Government. The rotor poles have not been tested for asbestos. If any other material, not indicated, is found to contain asbestos, it shall be addressed in accordance with this specification and Section 01 57 20.00 25 Environmental

Protection., and as described on Response Action Detail Sheet 95 found on the web at:

www.publications.usace.army.mil/Portals/76/Publications/EngineerPamphlets/EP_1110-1-11

The Contractor may propose alternate methods and containment areas when addressing asbestos containing material in the Contractor prepared Asbestos Hazard Abatement Plan

(AHAP).

o Para 1.3.1

As noted above, Units 1 and 2 at Philpott are expected to be free of asbestos with the exception of the rotor poles. If additional material, not indicated, that may be hazardous to human health upon disturbance during construction operations is encountered, stop that portion of work and notify the Contracting Officer immediately. Upon the direction of the Contracting Officer, samples shall be taken and delivered to a laboratory accredited under the "National Voluntary

Laboratory Accreditation Program (NVLAP)" and analyzed by PLM. If the asbestos content is less than 10 percent, as determined by a method other than point counting, the asbestos content shall be verified by point counting. If any of these items are found to contain asbestos, and the contract is modified accordingly, they shall be removed in accordance with the requirements detailed in this section of the specification. If the material is hazardous and handling of the material is necessary to accomplish the work, the Government will issue a modification pursuant to "FAR 52.243-4, Changes" and "FAR 52.236-2, Differing Site Conditions" allowing the contractor to either safely remove the material themselves, or subcontract the removal to a third party.

• Section 26 05 00.00 26

Included referenced end of section attachment

• Section 48 13 13.01 26

Included referenced end of section attachments

• Section 48 13 13.06 26

Included referenced end of section attachment

• Section 48 13 16.00 26 o Para 1.1(g)

Asbestos abatement shall be performed as specified in Section 01 57 20.00 36, Environmental

Protection, and Section 02 82 14.00 25, Asbestos Hazard Control Activities.

o Para. 2.12.2

For each generator, replace the existing generator heaters and heater wiring. Provide three (3) heaters with adjustable dew point control. Submit the Generator Heaters product data for approval. Existing heater power supply wiring has been identified as containing asbestos and has been removed. Completely remove and dispose of asbestos containing wiring such that the asbestos remains encapsulated. and undisturbed. Install in accordance with paragraph 3.24.1.2, Generator Heaters Installation and provide power supply wiring in accordance with Section 26

05 19.00 26.

o Para. 3.4

At the conclusion of the Voltage Endurance tests on both the prototype coils and production coils, cut five (5) slices of approximately 0.25 inch from each tested coil (two (2) from the slot section, two (2) in the grading section, and one (1) outside the grading area). For the two slices taken from the grading area, take one slice at one (1) inch from the end of the slot section and the second slice at the midpoint of the grading section. If the midpoint of the grading section occurs at a bend in the winding, cut the slice from within one inch of that point, either before or after the bend, so that the slice may be taken from a straight portion of the coil. Polish, but do not coat in any way, the cut surfaces. Conduct an examination of these slices. The slices from the slot and grading sections are subject to the void free requirements of paragraph 2.4.3, Coil

Manufacturing Methods. "Void free" is defined as free of voids visible to the naked eye under standard office lighting conditions. Vision corrected to normal acuity is considered naked. Ship the slices to the Government upon completion of the dissection and examination. Submit for approval a Dissection and Examination Report. Include in the report the results of the dissection, pictures, and examination of the slices. Identify in the report any abnormalities in the insulation such voids, tape wrinkles, conductor displacement, etc. Do not begin production of the stator coils until the dissection examination report has been approved by the Government. Retain the remaining sections of the tested coils and stored at the Contractor's facility until completion of the contract.

• Section 48 19 26.00 26 - Para. 1.1.1 (i)

Asbestos abatement shall be performed as specified in Section 01 57 20.00 36, Environmental

Protection, and Section 02 82 14.00 25, Asbestos Hazard Control Activities.

DRAWINGS

• 46310 - Bearing Support, Lever, & Link

• 46374 - Thrust Plate, Gate Stem Support, Seal Ring Retainer, Clamp Collar

• 46382 – Finished Shaft and Rocker Arm

W9127820R0069 Revised 9/24/20 Turbine Replacement & Rewind of Generator Units 1 and 2 Philpott Powerhouse, Bassett, VA

SECTION 00 11 00 - Page 1

SECTION 00 11 00

PROPOSAL SUBMISSION REQUIREMENTS AND INSTRUCTIONS

1.0 GENERAL REQUIREMENTS

1.1 This is a Federal Acquisition Regulation (FAR) Part 15, competitive, unrestricted, best value, source selection. Competing Prime Construction Contractors, hereinafter referred to as the “Offeror”, shall submit a proposal that includes the required submission information indicated below to demonstrate the Offeror’s past performance and capabilities to perform the work described in this solicitation. In addition, each competing Offeror shall also include in their proposal its price and other administrative information described below. By submission of a proposal, the Offeror accedes to all the terms of this RFP.

1.2 The Government reserves the right to reject any and all offers.

2.0 WHO CAN SUBMIT

2.1 Any responsible, interested construction contractors may submit a proposal.

2.2 Any design firm that participated in preparation of this solicitation, whether as a Government contractor or as a subcontractor to a Government contractor, is not eligible to participate in this solicitation as a prime contractor or a design subcontractor due to a conflict of interest. The Government considers such firms to have an unfair competitive advantage, and therefore will not consider such firms.

3.0 PROPOSAL SUBMISSION REQUIREMENTS

3.1 Submit the electronic proposal package to the U.S. Army Corps of Engineers to CTHYDRO PROPOSALS@usace.army.mil. The Government must receive your proposal no later than the time and date specified in Block 13 of the SF 1442. Any and all amendments to the solicitation shall be acknowledged by completion of Block 19 of the SF 1442.

3.2 Submit the proposal package in three separate volumes in Portable Document File (PDF) format.

Written portions of the proposal shall be provided in 8-1/2” x 11” format. Each volume shall be labeled as follows:

• “Volume I – Non-Priced Evaluation Factors” o Schedule information may be provided in 11” x 17” format.

• “Volume II – Administrative Requirements” o Bid Bonds (original and copy) should be mailed to the address indicated in block 8 of the SF1442 by the date and time established in block 13 of the SF1442. Failure to comply with this requirement will disqualify the offeror from competition.

• “Volume III - Subcontracting Plan (Individual Contract Plan)”

SECTION 00 11 00 - Page 2

Revised 9/24/20 Turbine Replacement & Rewind of Generator Units 1 and 2 Philpott Powerhouse, Bassett, VA

4.0 SPECIFIC PROPOSAL SUBMISSION INSTRUCTIONS

4.1 There are three separate volumes required in response to this solicitation. Volume I includes four

(4) non-priced evaluation factors that will be evaluated. Volume II includes administrative requirements and proposed pricing. Volume III includes Subcontracting Plan (Individual Contract Plan). In general, the non-priced factors are considered significantly more important than price in relative importance.

EVALUATION FACTORS AND ORDER OF RELATIVE IMPORTANCE

4.2 VOLUME I - TAB A, FACTOR 1 – PAST PERFORMANCE INFORMATION OF THE PRIME

CONTRACTOR

The Past Performance of the Prime Contractor (Offeror) consists of RELEVANT COMPANY EFFORT and QUALITY OF PAST PERFORMANCE. The Government will review recent, relevant company efforts and quality information provided by the owners of those efforts to assess the Offeror’s past experience and probability of successfully performing the work described in this solicitation. A recent, relevant project is a construction project:

• That was performed under a contract or task order, as those terms are defined in FAR 2.101, for Federal projects, or similar contractual agreements for State or Local Governments, or the commercial or private sector. Multiple projects under a single contract or task order are considered to be one project. However, do not combine multiple projects under separate contracts or task orders to create a single project.

• That is “recent”; one that has been completed within ten (10) years of the solicitation issue date, or one where the ongoing contract is at least 75% complete (measured by performance period days) as of the solicitation issue date and one (1) Unit has been 100% completed to quality. Offerors are responsible for providing start and completion dates for each completed project, or the start and scheduled completion dates for projects currently under construction.

• That is “relevant”; one that is similar in scope (type, size, complexity and dollar value) to the project described in this solicitation. For a project to be assessed on any degree of “relevancy”, it must reflect the performance of construction type work similar to the project required by this solicitation.

Volume Factor - Description Relative Importance

Vol I - Tab A Factor 1 – Past Performance Information of the Prime Contractor

1st in relative importance; more important than Factor 2, 3 and 4

Vol I – Tab B Factor 2 – Technical Approach 2nd in relative importance; less important than Factor 1; more important than Factor 3 and 4

Vol I – Tab C Factor 3 –Schedule 3rd in relative importance; less important than Factor 1 and 2; more important than Factor 4

Vol I – Tab D Factor 4 – Small Business Participation Plan

4th in relative importance; less important than Factors 1,2, and 3

Vol II Administrative Requirements (Including Price)

Not Rated. Price evaluated through Price Analysis.

Vol III Subcontracting Plan (Individual Contract Plan)

Not rated. Reviewed by the Small Business Advisor and the Contracting Officer for acceptability

Turbine Replacement & Rewind of Generator Units 1 and 2 Philpott Powerhouse, Bassett, VA

SECTION 00 11 00 - Page 3

4.2.1 RELEVANT COMPANY EFFORT

4.2.1.1 The Offeror shall provide no more than eight (8) examples of recent, relevant construction type projects performed as the prime construction contractor that demonstrate the company’s ability to perform the work similar to that required by this solicitation. A minimum of three

(3) projects is required if the projects incorporate both turbine and generator experience. If the projects contain only turbine experience, or only generator experience then a minimum of three (3) of each is required. If more than eight (8) projects are submitted for evaluation, only the first eight (8) projects will be evaluated. The construction effort shown does not have to be a task order under an IDIQ contract, but where it is, clearly indicate so.

4.2.1.2 GENERAL PROJECT INFORMATION:

For each project, the Offeror shall furnish the information specified below and as mentioned in the subsequent paragraphs. Attachment 2 at the end of this section, may be used to present the information.

• Name, location, and the owner/customer of the project. Include the powerhouse name, state or country, owner/customer organization.

• Contract number (if applicable), date the contract and/or work began and was substantially completed, and the cost for this single contract.

• Project owner’s point of contact and the primary point of contact for this project including their name, position, address, telephone, email, etc.

• Offeror’s role (prime, subcontractor, joint venture, etc.) and the type of work the Offeror’s company self-performed other than management.

• Address whether or not the Offeror was terminated or assessed liquidated damages.

• General Scope of the Project: Discuss specific details of the project including what was designed, manufactured, and installed. Include the rating, size, or type of equipment. Clearly explain the aspects that are similar to construction of this solicitation.

Turbine Replacement & Rewind of Generator Units 1 and 2 Philpott Powerhouse, Bassett, VA

SECTION 00 11 00 - Page 4

4.2.1.3 TURBINE COMPANY EXPERIENCE:

The purpose of this criterion is to determine whether the Offeror has successfully built similar runners in the proposed fabrication facility previously, and to demonstrate experience in the design, manufacturing and installation of replacement Francis turbine runners. A complete response to this factor will include:

1.) The Offeror shall demonstrate experience in the design, manufacturing and installation of replacement Francis turbine runners for each qualifying project. To be considered, the projects shall meet the following minimum requirements:

• Each runner shall have been installed and operational within the time frame identified in 4.2 above.

• The runner shall be for a replacement rather than a new Francis installation.

• The outer diameter of the runner shall have a minimum diameter of at least 56 inches.

• The runner shall have a specific speed of 35 - 65 based on the definition presented in paragraph (2) below.

• The Offerer shall have had direct contractual responsibility for hydraulic design, prototype mechanical design, final runner manufacturing, and field installation.

• For the runners identified above, the Offerer shall provide a Hill Chart for an existing turbine designed by the Offerer and tested in the field. Each Hill Chart shall include the lines denoting operating zone.

• Quantify the magnitude of the maximum pressure pulsations on a percentage basis (i.e.

100% x “max total pressure pulsation amplitude”/”net head”). The maximum pressure pulsations provided shall be those that occur within a non-dimensional operating range of equivalent size to that of Philpot.

• Provide a brief narrative comparing the computational fluid dynamics (CFD) predicted turbine performance to the field turbine test performance. Detailing differences between predicted and tested turbine hydraulic efficiency and turbine power output (in horsepower) at the test head.

2.) The Offeror shall provide the prior cavitation free design with the following sets of criteria listed in paragraphs (i) and (ii) below. Each project shall include the minimum net head, the maximum net head, the net head range, minimum phi, maximum phi, the phi range, the minimum discharge factor, the maximum discharge factor, and the design discharge factor.

The Offeror shall certify that the runner achieved cavitation free operation over the entire operating zone, with the exception of inter-channel vortices which are restricted to the criteria listed in paragraph (ii) below.

Turbine Replacement & Rewind of Generator Units 1 and 2 W9127820R0069 Philpott Powerhouse, Bassett, VA

SECTION 00 11 00 - Page 5 i.) Satisfactory experience shall be experience with phi ranges of 0.05 or larger, and specific speed (Ns) ranges of 35 to 65. The minimum net head at Philpott is 150 ft, the maximum is 170 ft, and the range is 20 ft. This yields a minimum phi of 0.7502, a maximum phi of 0.7986, and a phi range of 0.0484. Phi and specific speed (Ns) shall be calculated as follows:

𝑃𝑃𝑃𝑃𝑟𝑟𝑟𝑟𝑟𝑟ℎ𝑃𝑃𝑟𝑟𝑒𝑒𝑒𝑒 𝑆𝑆𝑟𝑟𝑃𝑃𝑃𝑃𝑆𝑆 𝐶𝐶𝐶𝐶𝑃𝑃𝐶𝐶𝐶𝐶𝑟𝑟𝐶𝐶𝑟𝑟𝑃𝑃𝐶𝐶𝐶𝐶 = 𝑃𝑃𝑃𝑃𝑃𝑃 = 𝜋𝜋(

𝑁𝑁

𝐷𝐷

)/(2𝑔𝑔 × 𝑃𝑃)0.5

Where:

• N = Rotational Speed in RPM

• D = Reference Diameter in inches (reference dia. shall equal “Throat Diameter”).

• g = Acceleration of Gravity for the altitude and latitude of the project from the IEC tables.

• H = Net Head in feet

Where:

• N = Rotational Speed in RPM

• HP = Turbine Horsepower Output at point of best turbine efficiency (peak of the

Hill Chart).

• H = Net head in feet at point of best turbine efficiency ii.) The Offeror shall certify that no inter-channel vortices exist at discharge factors above 75% of the design discharge factor. Discharge factors (Q11) shall be calculated as follows:

Where:

• Q = Flow in cubic feet per second.

• D = Reference Diameter in feet (reference dia. shall equal “Throat Diameter”).

• H = Net Head in feet.

Specific Speed = Ns = [N × HP 0.5]/H 1.25

Discharge Factor (Q11) = Q/(D2 × H 0.5)

Philpott Powerhouse, Bassett, VA

SECTION 00 11 00 - Page 6

3.) For each project demonstrating turbine company experience, the Offeror shall furnish the information below. Attachment 2 at the end of this section may be used to present the information.

• Address whether or not the Offeror was directly contractually responsible for the hydraulic design, prototype mechanical design, final manufacturing, and field installation of the runner. Identify the firms providing this experience if other than the Offeror and their relationship to the Offeror during said project (i.e. subcontractor, material supplier, not associated with the Offeror, etc.)

• Name, location and ownership of the facility the runner was manufactured in. If the runner was not manufactured in your facility, list the subcontractor and location of the facility.

• Runner specifications: type of runner, outer diameter (inches), rotational speed (RPM), rated net head (feet), rated horsepower (hp), minimum net head (feet), maximum net head (feet), net head range (feet), minimum phi, maximum phi, phi range, specific speed, minimum discharge factor, maximum discharge factor, and design discharge factor.

4.2.1.4 GENERATOR COMPANY EXPERIENCE:

The purpose of this criterion is to determine whether the Offeror has successfully built similar stator windings and stator cores in the proposed fabrication facility previously, and to demonstrate experience in the design, manufacturing and installation of generating stator windings and cores. A complete response to this factor will include:

1.) The Offeror shall demonstrate experience in the design, manufacturing and installation of generator stator windings and cores for each qualifying project. To be considered, the projects shall meet the following minimum requirements:

• A 5-100 MVA hydroelectric generator shall have been installed and be operational subsequent to.

• The same or similar insulation to that of the proposed insulation type as presented in the Offeror’s Technical Approach (Volume I – Tab B, Factor 2).

• The project shall have been for a separate design and/or location (i.e. not multiple contracts in one powerhouse).

• The Offeror shall have had direct contractual responsibility for design, final stator winding and core manufacturing, field installation and testing.

Turbine Replacement & Rewind of Generator Units 1 and 2 Philpott Powerhouse, Bassett, VA

SECTION 00 11 00 - Page 7

2.) The Offeror shall identify the experience their design personnel have in addressing design conditions similar to those found at Philpott Powerhouse including but not limited to:

• A description of the analysis steps taken when designing the core and winding to minimize air-gap flux induced stator core vibrations at fundamental and harmonic frequencies.

• Explain what analysis and testing was performed

• Explain what repairs were developed

• Explain what the results were of post repair testing that confirmed a reduction in vibration levels.

3.) For each project demonstrating generator company experience, The Offeror shall furnish the information below. Attachment 2 at the end of this section may be used to present the information.

• Generator Specifications: Size, rating, and a description of the insulation system.

• Address whether or not the Offeror was directly contractually responsible for the design, final manufacturing, field installation, and testing of the generator stator windings and cores.

Identify the firms providing this experience if other than the Offeror and their relationship to the Offeror during said project (i.e. subcontractor, material supplier, not associated with the Offeror, etc.)

• Describe the analysis steps taken when designing the core and winding to minimize air-gap flux induced stator core vibrations at fundamental and harmonic frequencies. Explain what analysis and testing was performed, what repairs were developed, and the results of post repair testing that confirmed a reduction in vibration levels.

• Name, location and ownership of the facility the stator windings and cores were manufactured

in. If the stator windings and cores were not manufactured in your facility, list the subcontractor and location of the facility.

4.2.2 QUALITY OF PAST PERFORMANCE

4.2.2.1 The Offeror shall submit evidence of the quality of their past performance for each of the provided projects. For Federal Government projects, the Offeror shall provide a completed contractor performance evaluation, whether interim or final, found in the Contractor Performance Assessment Reporting System (www.cpars.gov/). If a proper evaluation does not exist in CPARS, because it has not been completed or the project is a non-Federal Government project, the Offeror shall provide a completed Past Performance Questionnaire (PPQ) (See Attachment 3). If, at time of evaluation, a final contractor performance evaluation exists in CPARS, and yet the Offeror submits a PPQ, only the evaluation in CPARS will be considered.

4.2.2.2 Past performance surveys/assessment/evaluation forms other than CPARS or PPQs are unacceptable and will not be considered or evaluated.

4.2.2.3 Completed PPQs that were submitted in response to previous solicitations may be used in this source selection. However, Offerors shall not incorporate such PPQs by reference and thus must resubmit the PPQ with their proposal. This does not, however, preclude the Government from utilizing previously submitted PPQ information in the Past Performance evaluation.

While the Government may elect to consider data from other sources, the burden of providing current, detailed and complete past performance information rests with the Offeror.

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SECTION 00 11 00 - Page 8

4.2.2.4 If an Offeror has been required to take corrective action for any substandard performance or experienced other performance problems such as cost overruns, extended performance periods, numerous warranty calls, etc., the Offeror should explain the circumstances and the corrective actions taken.

4.2.2.5 If an Offeror’s client/customer will only provide completed PPQs directly to the U.S. Army Corps of Engineers, Mobile District, Offerors must ensure the client/customer submits the PPQ by the proposal due date using the following electronic mailing address: CTHYDRO- PROPOSALS@usace.army.mil. The solicitation number shall be included on the PPQ form.

PPQs received after the proposal due date will be considered untimely and will not be considered during the evaluation.

4.2.3 JOINT VENTURE SUBMISSION REQUIREMENTS

4.2.3.1

4.2.3.2

4.2.3.3

4.2.3.4

Like other Offerors, a JV Offeror shall provide no more than eight (8) examples of recent, relevant projects performed by the JV that reflect the JV’s ability to perform the work required in this solicitation.

If the JV Offeror does not have projects performed as a JV, the Offeror may supplement those projects it performed as a JV with recent, relevant projects performed by the members of the JV in their individual capacities. In such instance, the total number of projects submitted by the JV shall be no more than eight (8).

If the JV Offeror has not previously performed as a JV, each member of the JV may submit recent, relevant projects performed in their individual capacities. The total number of projects submitted by the JV shall be no more than eight (8). The intent is that each member may submit individual projects so the requirements for past performance examples are met. For example, one member may only have experience on generators and one on turbines which together would meet the requirements but separately would not.

All Business Entities: To satisfy Paragraph 4.2.1 and 4.2.2 only information pertaining to the corporate entity listed on the SF 1442 will be considered in the evaluation. Information related to a parent company, affiliates, divisions, subsidiaries, other related entities, subcontractors, or the individual experience of key personnel will not be considered.

4.2.4 VERIFICATION

The Government reserves the right to verify the information on projects submitted for evaluation, and to review CPARS, or other Government project appraisal systems, for information on other projects performed by the Offeror whether submitted as part of a proposal or not. The Government also reserves the right to contact project clients/customer, or other references. For any adverse performance information found for which the Offeror has not had an opportunity to address, the Offeror will be afforded an opportunity to explain.

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4.3 VOLUME I – TAB B, FACTOR 2 – TECHNICAL APPROACH

The Offeror must submit a technical approach narrative to explain their company’s capabilities to execute the construction work required by the solicitation. Reference drawings and specifications for project information required by this solicitation. Factor 2 shall not exceed sixty (60) pages. Address the following item, in a narrative format:

4.3.1.1 TURBINE TECHNICAL APPROACH

1.) Design Methodology: The purpose of this evaluation criterion is for the offeror to provide performance guarantees, describe its design approach and demonstrate that the offeror is capable of producing a design and prototype with the hydraulic performance guarantees offered. A complete response to this factor will include each of the requirements below:

i.) Performance Guarantees. The offeror shall provide prototype turbine hydraulic performance guarantees by completing the two tables on Attachment 4 (GUARANTEE TABLES), located in Section 00 11 00 of the solicitation. The weighted efficiency must be at least 91.0%.

ii.) Expected Performance Curves with Cavitation Limits. Expected prototype turbine performance curves shall be submitted showing the relationship of turbine hydraulic efficiency versus turbine power output (in horsepower) for net heads of 166, 163, 160, and 157 feet. The curve for each net head shall include a tag indicating the turbine's upper and lower cavitation limits.

2.) Capability to Perform. For the purpose of demonstrating that the offeror is capable of producing a design with the efficiency level offered, the offeror shall submit the following:

i.) A predicted Hill Chart (Head (ft) vs. Flow (cfs)) for the proposed Philpott prototype turbine, including lines denoting operating zone.

ii.) Submit one (1) Hill Chart for an existing turbine design and provide a brief narrative (400 words or less) describing the methods used to adjust the known Hill Chart to the predicted Hill Chart for Philpott. A Hill Chart submitted for past performance may be used.

3.) Cavitation Performance: The information provided in the Offeror’s past performance examples satisfying the requirements of paragraph 4.2.1.3 (3) will be evaluated to determine whether the offeror can successfully meet or exceed the cavitation requirements for this criterion.

4.) Pressure Pulsations: The offeror shall be evaluated on pressure pulsation performance. The Offeror shall submit a brief narrative (300 words or less) describing design approach to minimize pressure pulsations. The narrative shall contain the following: Discuss measures taken to minimize pressure pulsations during design. Discuss specific design techniques employed to minimize pressure pulstaions.

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5.) Drawings and Descriptive Information: The purpose of this criterion is to explain, in narrative and drawing format, the design and arrangement of the proposed turbine including the replacement components/modifications, how the proposed turbine will interact with existing turbine components; and provide an understanding of how everything will work together as a complete unit when finished. Each PROPOSAL shall include a narrative and drawings describing the offeror's proposed turbine. A complete response to this factor will include each of the requirements below.

i.) Provide a complete and detailed narrative that demonstrates adherence to and an understanding of the specification’s technical requirements. Reference the drawings where appropriate. The narrative shall also include but is not limited to the following:

• A description of all replacement components and/or turbine modifications that are required to achieve the turbine hydraulic performance guarantees and technical requirements.

• An explanation of the interaction of the replacement or modification with existing turbine components.

• An explanation of the purpose or goal of the replacement component or modifications.

• Provide the name, location, and ownership of the facility proposed for the final fabrication of the Philpott runners.

ii.) Drawings of the proposed prototype shall be submitted including a turbine distributor cross section drawing showing the general design and arrangement of the proposed equipment. The drawings shall include details and outline dimensions, to a degree appropriate at the proposal stage, clearly showing all proposed replacement components and modifications. The interaction of replacement components or modifications with existing turbine components shall additionally be shown.

iii.) For Alternate Proposals containing replacement components, or modifications for which specification requirements are nonexistent in the solicitation, provide the proposed specifications under which the work will be performed.

4.3.1.2 GENERATOR TECHNICAL APPROACH

1.) Stator Winding Losses: The purpose of this criterion is to determine the offeror’s guaranteed losses for the new stator winding. The Offeror shall present the following:

i.) The offeror shall present guaranteed combined DC I2R loss (corrected to 75 °C).

ii.) Stray load loss for their proposed winding in kW at:

• 9,430 kVA (8,487 kW) at 0.9 power factor

• At the old 115% rating of 7,500 kVA at 0.9 power factor

2.) Stator Winding and Core Manufacturing and Installation Details: The purpose of this criterion is for the offeror to provide performance guarantees, describe its design approach and demonstrate that the offeror is capable of producing a design, manufacturing, and installing the generating stator windings and core. Refer to the Technical Specification Section 48 13 16.00

26. A complete response to this factor will include each of the requirements below:

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SECTION 00 11 00 - Page 11 i.) The Offeror shall provide a complete description of the stator winding manufacturing, core manufacturing and installation process. The stator winding manufacturing process shall include details such as coil insulation system, including strand, turn, and ground wall insulation material and thickness; cross sectional dimensions; designed dielectric stress of the ground wall insulation at rated voltage; and the ground wall insulation application method (hand-wound, machine wound with or without scarf joint, or other).

ii.) The Offeror shall identify the location and name(s) of the owning interest in the winding manufacturing facility.

iii.) The stator winding installation process shall include details of side packing system, wedging system including type, dimensions and materials of wedges, total number of wedges per slot, number of check wedges per slot and end wedge securing method, spring deflection measurement method, brazing method, and quality assurance procedures.

4.4 VOLUME I – TAB C, FACTOR 3 - SCHEDULE

4.4.1 The purpose of this criterion is to determine the offeror’s proposed schedule for the design, fabrication, and installation and testing of the turbine runners and the generator stator windings and core. The offeror shall provide detailed schedule for design, fabrication, and installation work required by this contract according to the scheduling requirements and constraints specified in Section F of this solicitation. The schedule should be prepared in the form of major milestones and days to completion including design and design reviews. Milestones shall include the design, fabrication, installation and testing of the turbine runners and the generator stator windings and core. The Contractor shall provide a schedule showing they will complete the contract within the specified time. This schedule will be incorporated into any resulting award and form the baseline for required performance and contract administration

4.5 VOLUME I – TAB D, FACTOR 4 – SMALL BUSINESS APPROACH

4.5.1 Offerors are required to demonstrate its “planned” level of commitment to small business (SB) usage if awarded a contract under this solicitation and demonstrate its previous commitment to SB’s through its record of past utilization of SB’s in the performance of past contract. Worked performed by an offeror that is a SB Prime Contractor shall be considered Small Business participation and Small Business Utilization.

4.5.2 Small Business Participation. Offerors (both large and small business) are to demonstrate their level of commitment to utilizing SBs by identifying the extent to which SBs as defined by the North American Industry Classification System (NAICS) Code applicable to this solicitation are to be used. The Offeror’s own participation as a SB is to be identified, and will be considered in evaluating the Small Business Participation. All Offerors are to address the following items in a narrative form:

1.) Offerors shall provide a Small Business Participation Plan that identifies its anticipated utilization of SB concerns in performance of this solicitation. The Offeror’s percentage of work committed to SBs will be evaluated. To be acceptable, an Offeror must meet the minimum Total Small Business Participation Goal of 5%. The Offeror’s plan must reflect its effort measured as a percentage of the total contract amount. SB Offerors should include their own efforts when addressing percentages.

2.) Offerors shall provide a list of services that potentially could be committed to SBs, including, but not limited to, electrical services, installation services, commissioning, demolition, and

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SECTION 00 11 00 - Page 12 asbestos testing and abatement. SB Offerors should include their own efforts when addressing services.

4.5.3 PAST UTILIZATION OF SMALL BUSINESS

Offerors (both large and small business) are to show the extent to which they have utilized SBs in past contracts.

4.5.3.1 Offerors shall submit a record of the past three (3) consecutive years that demonstrates the utilization of SBs in the performance of its contracts, to include percentage of utilization. The work performed directly by an Offeror that is a SB prime contractor will be considered as past Small Business Utilization. Past information is limited to the three years preceding the solicitation issue date. An Offeror may demonstrate its past record by including a description and available documentation that shows the methods employed to promote Small Business Utilization and internal methods used to monitor such utilization.

4.5.3.2 Offerors who are large businesses as defined by the NAICS Code applicable to this solicitation are to also provide documentation of their achievement of the goals established under FAR 52.219-9 “Small Business Subcontracting Plan” on prior contracts. Documentation may be in the form of copies from the “Electronic Subcontracting Report for Individual Contracts” if report dates fall within the three year period indicated. Offerors may provide a brief narrative to explain why Small Business goals were not met.

4.5.3.3 Large businesses that have never held a contract incorporating FAR 52.219-9 shall so state and provide a narrative addressing the following:

1.) How has your company historically promoted the usage of SBs as subcontractors?

2.) How has your company made Small Business subcontracting opportunities available to SBs?

3.) How has your company historically monitored SB usage (your firm’s methods of reviewing Small Business subcontracting practices/opportunities)? (The term “monitored SB usage” as it is used in this solicitation means to track the amount/quantity of your firm’s subcontracting to SBs, NOT monitoring the performance of SB subcontractors.)

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4.6 VOLUME II – ADMINISTRATIVE REQUIREMENTS (INCLUDING PRICE)

4.6.1 Prior to making an award, the Contracting Officer must determine that any Offeror is responsible both financially and technically and has the capability to properly manage the contract during performance and complete the work on time.

4.6.2 The Offeror is to submit the following information:

1.) Standard Form 1442, the Proposal Data Sheet (Attachment 1) and acknowledgement of all amendments.

2.) Pricing (Proposal Bid Schedule) i.) Price Breakdown Requirements. The Government requires a “price breakdown” of the bid items, including the base bid and any options. The format of the breakdown will be left up to the Offeror. However, at a minimum, provide pricing for the major categories of work, i.e., site improvements, landscaping, electrical, and mechanical, etc.