STATEMENT OF WORK.pdf

RETRO-COMMISSIONING STUDY

STATEMENT OF WORK

1.0 BACKGROUND, PURPOSE, SCOPE, AND GOALS

1.1 BACKGROUND – Wallops Flight Facility (WFF) is located at Wallops Island, VA, and provides agile, low-cost flight and launch range services to meet government and commercial sector needs for accessing flight regimes worldwide from the Earth's surface to the moon and beyond. Wallops' flight assets ranging from research aircraft, unmanned aerial systems, and high-altitude balloons to suborbital and orbital rockets provide a full range of capability while operational launch range and airfield capabilities meet ongoing and emerging needs in the science, aerospace, defense, and commercial industries. As such, Wallops must have the most energy and water-efficient facilities to accomplish this mission

1.2 PURPOSE – The work to be done consists of performing a retro-commissioning study at WFF through an

In-depth Feasibility Assessment—Investment Grade Audit (IGA). This IGA—ASHRAE Level III audit should provide sufficient detail of repairs and Energy Conservation Measures (ECMs), which includes identifying and outlining deficiencies, energy and cost savings potential, and proposed repair cost for each deficiency. To eventually fully implement the commissioning of the identified facilities/buildings/systems.

1.3 SCOPE – An IGA shall be conducted using the identified facilities/buildings/systems (WFF Buildings F-

010, N-159, D-001 and E-109). This IGA must be in full compliance with the requirements of EISA

2007(section 432) and ASHRAE Level 3 audit/assessment criteria (See Table 3).

1.4 GOALS – The following are the goals for the IGA

− Projects (Repairs and ECMs) shall be in the best interest of the government/agency/mission and ranked based on need/facility and reliability improvements/economics.

− Meeting the previous point, incentives, reduction in consumption, and cost savings resulting from will be maximized for the study’s recommended repairs.

− Impacts on personnel and increased maintenance requirements will be minimized.

− A comprehensive deficiency list identifying various issues with HVAC Equipment (Air handling units, Variable Air Volume boxes and ducts, thermostats and temperature sensors, fan-coil units, unitary equipment, central and distributed chillers, cooling towers, pump, and global points for the control system…) will be developed and divided into two categories: recommissioning issues and maintenance issues.

− The studies recommended repairs and ECMs will be logically combined into larger projects to improve project costs.

2.0 SITE ADDRESSES & POINTS OF CONTACT

Utility Company Name: A&N Electric Cooperative

− Leo Radkowski, 21275 Cooperative Way, Tasley, VA 23441

Office: 757-787-9750 EXT 367 Mobile: 727-509-0960

Agency Point of Contact:

− Evelyn Baskin, GSFC Building 18 Room 140, 301-286-7728, evelyn.baskin@nasa.gov mailto:evelyn.baskin@nasa.gov

3.0 GENERAL REQUIREMENTS

3.1 DEFINITION OF TERMS

Contractor — The entity or entities authorized by A&N Electric Cooperative to perform Work under this

Agreement, and any subcontractors retained to perform the Work described in this Agreement.

Cost-effective, also Life Cycle Cost-Effective and Financed Life Cycle Cost-Effective — Providing a savings to investment ratio (SIR) greater than for example 1 or 1.25 insert agency determination, as calculated using the methods and procedures developed pursuant to 10 CFR 436, Federal Energy

Management and Planning Programs, Subpart A, Methodology and Procedures for Life Cycle Cost

Analyses.

Energy Conservation Measure (ECM) — A potential energy or water conservation measure that is identified during the survey.

Investment Grade Audit (IGA) — A comprehensive analysis of potentially pricey energy efficiency improvements with a distinct focus on financial concerns and return on investment. The audit consists of a detailed account of energy and water use; cost/savings analysis of potential energy and water savings opportunities; and a project proposal of bundled measures, with a financing plan as well as implementation and savings verification plans. According to the California Energy Commission, an investment grade audit should cover at least the following:

− Operating hours analysis

− Inventory of all energy consuming equipment

− Energy rates and cost figures for all utilities

− Analysis of at least one year of historical utility billing data

− Energy balance analysis

− Identification of the major energy consuming equipment and processes in the building

− Analysis of opportunities for energy efficiency measures and their potential savings and payback periods

− Identification of suitable retrofits and technology for these measures

− Identification of potential measures in similar buildings, which are not feasible for the building in question

Maintenance — Maintenance refers to all efforts, by all sources, to maintain completed ECMs. The economic analysis of maintenance costs associated with an ECM must include a comparison of ongoing maintenance costs and the potential repair/replacement costs avoided with adequate maintenance. Data about maintenance will be provided by the Agency.

Preliminary Assessment — A survey of a building or facility and surrounding areas that provides sufficiently detailed information to identify all potential energy and water conservation measures with a life-cycle cost-effective payback period.

Retro-commissioning — Retro-commissioning, or “existing building commissioning,” is a systematic process for identifying and implementing operational and maintenance improvements in a building to ensure continued good performance over time. The intent of the process is to optimize the performance of building subsystems as well as how they function together. Retro-commissioning focuses on operations and maintenance improvements and diagnostic testing, although needed capital repair improvements may be identified and recommended through the process.

Savings-to-Investment Ratio (SIR) — The net present value of project savings stream divided by the project cost using discount factors from the Energy Price Indices and Discount Factors for Life-Cycle Cost

Analysis – April 2008. Annual Supplement to NIST Handbook 135 and NBS Special Publication 709, U.S.

Department of Commerce. http://fire.nist.gov/bfrlpubs/build08/PDF/b08019.pdf

Simple Payback Period — The ratio of the estimated project cost divided by the estimated savings per year from implementing the energy conservation measure.

http://fire.nist.gov/bfrlpubs/build08/PDF/b08019.pdf

3.2 ASSESSMENT TEAM — shall have the following minimum experience and qualifications:

Assessment Supervisor: (Per 10 CFR Ch. II, Section 450.22)

− Minimum of four (4) years of experience in accomplishing surveys

− Minimum of Bachelor’s degree in Engineering from a college or university accredited by the Engineers

Council for Professional Development

− Professional Registration as an Engineer in the State of Maryland

Assessment Team Members:

− Minimum of two (2) years of experience in accomplishing surveys

4.0 APPLICABLE SPECIFICATIONS, REGULATIONS, ETC.

Repairs/ECMs shall meet or exceed all applicable codes and regulations, including, and not limited to:

− National Electrical Code (NEC)

− Uniform Building Code (UBC)

− Uniform Mechanical Code (UMC)

− Uniform Plumbing Code (UPC)

− National Fire Protection Association (NFPA) Standards

− Clean Air Act and Amendments, Title VI

5.0 IGA on Repairs/ECMs — The Repairs/ECMs listed in Table 1 shall be evaluated for applicable building, structure, or area that have been surveyed at WFF as listed in Table 2 in order to develop more viable

Repairs/ECMs to include in the study.

5.1 IGA of Repairs/ECMs —The IGA should provide a detailed account of energy and water use in WFF facilities and grounds; a cost and savings analysis of potential energy and water savings opportunity; and a project proposal of bundled measures, with the financing plan, implementation plan, and the plan to verify the savings. The Utility will provide results of the assessment in spreadsheets showing technology applicability to all buildings and structures.

5.2 RECOMMENDATIONS FOR CHANGES IN OPERATIONAL AND MAINTENANCE PROCEDURES

It is understood that substantial energy and water savings can be obtained by changes in operational procedures. To the extent possible in this IGA, in each area or building where substantial energy or water is consumed, provide recommendations for improving efficiency through operational strategies that will not cause risk to the mission or operational requirements including:

− Changes to operational hours for specific equipment or systems, e.g., minimize electrical consumption and demand charges through night/off-peak runtime for heavy process loads.

− Changes in procedures and/or working hours having little or no impact on personnel.

− Changes to existing maintenance procedures, e.g., group lamp replacement, replace failed motors with premium efficiency motors, etc.

− Modifications to existing facility use, e.g., maximizing occupancy, etc.

Table 1 ECM List

ECM # ECM Description

1 Retro and Continuous Cx of BAS/HVAC

Table 2 Buildings to be Audited/Assessed.

BUILDING DESCRIPTION Area (SF)

F-010 TECH SERV SHOPS & OFFICES 131583

N-159 RESEARCH ACFT & OBSERV SCIENCE LAB 90,773

D-001 A/C MAINT HANGAR-AVIONIC 60,138

E-109 Engineering Building 55,018

Table 3 Energy Assessment Description and Document

Assessment Description

ASHRAE Level

III

Detailed Analysis of Capital-Intensive Modifications

This level of engineering analysis focuses on the potential capital-intensive projects identified in the Level 2 analysis and involves more detailed field data gathering as well as a more rigorous engineering analysis. It provides detailed project cost and savings calculations with the high level of confidence required for major capital investment decisions. This audit alternatively is called a comprehensive audit, detailed audit, or technical analysis audit. It expands on the Level 2 audit by providing a dynamic model of energy use characteristics of both the existing facility and all energy conservation measures identified. The building model is calibrated using actual utility data to provide a realistic baseline against which to compute operating savings for proposed measures. Extensive attention is given to understanding not only the operating characteristics of all energy consuming systems but also the situations that cause load profile variations on both an annual and a daily basis. Existing utility data is supplemented with sub-metering of major energy consuming systems and monitoring of system operating characteristics.

EISA 2007

(Section 432)

ASHRAE Level II audit that much include:

1. Description of measure.

2. Estimated cost of ECM.

3. Estimated annual energy/water consumption and cost savings.

4. Estimated life-cycle energy/water savings.

5. Estimated life-cycle cost savings.

6. Savings-to-Investment Ratio (SIR).

7. Payback Period.

8. Summary of the economics of bundled ECMs with total interactive life-cycle savings, SIR, and payback period.

Table 4 DOE ECMs Descriptions

According to 10 CFR 455.2, the term energy conservation measure means “an installation or modification of an installation in a building which is primarily intended to maintain (in the case of load management systems) or reduce energy consumption and reduce energy costs, or allow the use of an alternative energy source, including, but not limited to:

1) Insulation of the building structure and systems within the building;

2) Storm windows and doors, multi-glazed windows and doors, heat-absorbing or heat reflective glazed and coated windows and door systems, additional glazing, reductions in glass area, and other window and door systems modifications;

3) Automatic energy control systems which would reduce energy consumption;

4) Load management systems which would shift demand for energy from peak hours to hours of low demand and lower cost;

5) Equipment required to operate variable steam, hydraulic, and ventilating systems adjusted by automatic energy control systems;

6) Active or passive solar space heating or cooling systems, solar electric generating systems, or any combination thereof;

7) Active or passive solar water heating systems;

8) Furnace or utility plant and distribution system modifications including:

a. Replacement burners, furnaces, boilers, or any combination thereof which substantially increase the energy efficiency of the heating system;

b. Devices for modifying flue openings which will increase the energy efficiency of the heating system;

c. Electrical or mechanical furnace ignition systems which replace standing gas pilot lights; and

d. Utility plant system conversion measures including conversion of existing oil- and gas-fired boiler installations to alternative energy sources;

9) Addition of caulking and weatherstripping;

10) Replacement or modification of lighting fixtures (including exterior light fixtures which are physically attached to, or connected to, the building) to increase the energy efficiency of the lighting system without increasing the overall illumination of a facility, unless such increase in illumination is necessary to conform to any applicable State or local building code or, if no such code applies, the increase is considered appropriate by DOE;

11) Energy recovery systems;

12) Cogeneration systems which produce steam or forms of energy such as heat as well as electricity for use primarily within a building or a complex of buildings owned by an eligible institution and which meet such fuel efficiency requirements as DOE may by rule prescribe;

13) Such other measures as DOE identifies by rule for purposes of this part as set forth in subpart D of

10 CFR part 450; and

14) Such other measures as a grant applicant shows will save a substantial amount of energy and as are identified in an energy audit or energy use evaluation in accordance with § 455.20(k) or a technical assistance report in accordance with § 455.62.”