ATTACHMENT 1 STATEMENT OF WORK.pdf

Mauna Loa Observatory

Power Infrastructure Upgrades

Solar System with Battery Backup Resiliency

Statement of Work (SOW)

Narrative Including Base Contract Requirements

SOW for the following Base Contract and Options:

CLIN. 01: Base contract: Infrastructure Distribution Design

CLIN. 02: Option - Solar & Battery Storage - Tower Building

CLIN. 03: Option - Solar Part I - 125 kW Ground-based Solar System

CLIN. 04: Option - Solar Part II - 125 kW Ground-based Solar System

CLIN. 05: Option - Solar Part III - 150 kW Battery System + Cement Pad

CLIN. 06: Option - Solar Part IV - 125 kW Ground-based Solar System

CLIN. 07: Option - Solar Part V - 125 kW Ground-based Solar System

CLIN. 08: Option - Solar Part VI - 150 kW Battery System

Summary:

The NOAA Global Monitoring Laboratory (GML) Mauna Loa Atmospheric Baseline Observatory (MLO) is located on the Big Island of Hawaii, at 11,141 ft above sea level on the north flank of the Mauna Loa volcano. The site is often regarded as the “premier atmospheric science site on earth” and is home to numerous high-profile data sets including the “Keeling Curve” that first documented the rise in carbon dioxide in our global atmosphere. The observatory conducts well over 250 daily climatological measurements, some as precise as 1 part in a trillion.

The MLO facility is located at the end of an 18-mile one-lane access road reachable from Saddle Road. The start of the Mauna Loa Access Road is located just to the east of the more well-known access to the Mauna Kea Visitor Center and telescopes. Logistically, the site is at over 11,200 feet in altitude and the sun (UV) conditions can be strong and the air temp significantly cooler than elsewhere on the island. The 18-mile driveway can be challenging for longer vehicles due to the narrow width, rolling topography, and occasional sharp corners. The power lines do cross over the road in multiple locations along the upper half of the MLO access road and may pose an overhead obstruction issue for very tall vehicles (no known issues with the powerlines obstructing access to the site historically). The one-way commute time to the MLO site from either Hilo or Kona typically takes ~90-min.

Scientific measurements obtained at MLO often represent the global background conditions for the atmospheric research community. As such, the measurements taken at the site are highly precise and need to be safeguarded to ensure that indoor room air and/or local site contamination does note negatively impact the long-term records. NOAA has developed a comprehensive banned construction materials (chemicals) list and each product used at the site must be cleared against this banned chemical list prior to use. The banned construction materials list will be provided to vendors and NOAA can assist with reviewing individual products as needed.

Furthermore, it will be required to keep the science at MLO operational as much as possible throughout construction activities. For example, temporary power might be required and/or a phased approach to building modifications that allow for scientific systems to stay online to the greatest extent possible.

The MLO site has a number of identified code compliance improvements needed. The original, legacy 50KVA power feed to the site needs to be removed and all structures/projects that this power feed is currently supporting need to be migrated over to one of the other two power feeds.

All new construction work shall meet current code requirements.

The Federal government is required to follow the National Environmental Protection Act (NEPA) process for all Federal actions. NEPA does apply to this construction effort and NOAA is actively working to get the necessary approvals from the State of Hawaii (Division of Land and Natural Resources (DLNR) / State Historic Preservation Office (SHPO)) and finalize the NEPA process. The NEPA process is running in parallel with this procurement effort and it is anticipated that the NEPA will be finalized after this procurement has been awarded. As such, it is imperative that any/all outcomes resulting from the NEPA process shall be incorporated into the final design before a notice to proceed can be issued and construction begins.

Current Site Power Status:

The MLO site is currently fed power from Hawaii Electric and Light Company (HELCO) via three different power feeds. This creates an unsafe condition at the facility due to multiple sources of power, lack of integrated fault protection, and old legacy hardware that no longer meets current codes. The original 50KVA power feed terminates on the ground (cement pads), within a small fenced area, and some buildings are still fed power from this original system via unburied armored cable. This unburied power feed is a safety hazard that needs to be corrected.

The second power feed to the site terminates with three pole-mounted transformers. It is unknown if these pole-mounted transformers have additional capacity to safely power adjacent structures that are still connected to the older legacy 50KVA system. Finally, the most recently installed power feed is a ground-based transformer (300KVA) on a cement pad just to the east of the original legacy power feed.

Current Site Grounding Status:

MLO presents a unique challenge for effective grounding due to the site being located at 11,141’ elevation, on a volcanic glass dome (north flank of Mauna Loa), and geographically isolated from any other facility. Mineral dirt is non-exist at the observatory’s altitude and ground water below the site is presumed to be close to sea level. While grounding at the site is challenging, it is critical for lightning protection, supporting communications signals (off-site), minimizing transient noise, and maintaining a scientific-grade low radio-frequency (RF) environment. The science at MLO depends on a well-established and interconnected grounding system for the site.

All new concrete work at the site should use conductive concrete (contains carbon) for all infrastructure that will come in contact with the site's “soil”. Concrete should also include copper cabling connected to the reinforcement steel to assist with bonding the foundation to the site grounding system and this copper cabling must be protected from damage as it exits the concrete pad and ties into the site-wide grounding system.

Current Site Fiber Status:

The MLO site has fiber installed in some locations however the build-out is incomplete (does not connect all buildings), lacks robust dual paths, and is not well documented. One obvious omission is a fiber connection across the parking lot (north-south) to connect the fiber currently operating in the Barnes Building and the current Uchida Building. This connection is completed around the driveway via the Keeling Building and it was noted that some existing conduits are completely filled with cable/wire of unknown use.

Vision for the Future of the MLO site:

MLO has been an operational research site for over 6-decades. The importance of the work conducted at MLO will continue to increase and the site must be ready to meet this challenge for the next 6-decades to come. Fundamental to the redevelopment of the MLO campus is the backbone infrastructure of power, grounding, and fiber connectivity. The MLO site has a phased redevelopment plan for multiple new facilities in the coming years and ensuring that the site infrastructure is appropriately sized, logically distributed, and will not conflict with future construction is critical.

Contract Line Item No. 01: Base contract: Infrastructure Distribution Design

A. Infrastructure Distribution Design:

1. Working from the Summit Kinetics Report (Feb 2021), known site conditions, and the developed MLO Master Plan for site construction, design for a site-wide distribution of power, grounding, and fiber to allow for completion of the MLO Master Plan construction. The new design should use existing infrastructure as the starting point and provide a roadmap to the final site design. The site infrastructure design will be the backbone of the site’s redevelopment and should coordinate with the existing buildings, topography, and MLO Master Plan to best support the site.

The proposed site layout for power, grounding, and fiber should include:

a. Project phasing, as needed, to keep MLO science operational to the greatest extent possible.

b. Account for future installation of solar panel array(s) to meet 100% of site power demand - an ~500kW solar system using both roof and ground-mounted systems.

c. Account for future installation of battery backup power to carry the site for a minimum of 24-hours - an ~300kW system.

d. Design shall include 50%, or more, extra capacity for all new conduit installations for future use.

e. Design should include increasing the size of the main site transformer to 750kVa.

f. Design should include burying power from HELCO power poles to the new transformer location (site TBD). Last set of HELCO power poles should be the double poles that are located to the southwest of the NOAA land parcel.

g. Design should include a new smart meter service for the entire site and sub meters to each building.

h. Design shall include, but not be limited by, all phases of power improvements and grounding work to meet the objective of the MLO Master Plan.

i. Design should include all detailed drawings necessary for connecting to each building on the MLO site, trench variations (number and size of conduits, encapsulated concrete, crusher mix, etc.).

2. Inspect, test, and document (as necessary) the following electrical system components across the MLO site (excluding the ASIAA and HAO buildings):

a. All bonding connections

b. Code and safety compliance elements

c. Lightning fault current

i. 40-m tower strikes

ii. Site-wide strikes

d. Electrical fault current

e. Static discharge currents

f. Verify no harmful ground loops exist/created

g. Surge protectors

i. Consider/design primary and secondary protection and coordinate technology used as appropriate (MOV and GDT type)

ii. Posted fault capability metrics

h. All convenience outlets (particularly outdoor) should be identified.

i. All conduits and wiring laying on the surface of the ground:

i. Identify and document all surface conduits/circuits that need to be protected from incidental contact/damage in the short-term.

ii. Identify and document all surface conduits/circuits that need to be replaced to meet code compliance during the MLO Master Plan.

3. Design for the site grounding system should align with the option for the grounding rod installation as proposed in the Summit Kinetics report and included in a separate contract.

4. Fiber and grounding networks shall be designed with redundancy and alternate paths wherever possible. The design can either be a ring and spoke model as provided in the MLO Master Plan or a backbone design down the middle of the site with multiple paths/conduits.

5. Within the utility trench, power and network (comms) should be separated to the greatest extent (distance) possible.

6. Fiber build-out plan should include removal of copper phone lines for the conversion to fiber network to support communications.

7. Use of planned walkways and cable trays for MLO Master Plan is acceptable. Where cable trays do not exist and will not be installed in the future, design infrastructure into trench, conductive concrete corridor, retaining wall, or other solution as appropriate for site conditions and planned future construction.

8. Encapsulate all buried infrastructure in concrete at locations where vehicles may drive over the trench.

9. Include pull stations/vaults, as required, in design.

10. All buried conduit installations must include a utility locator (demarcation tape).

11. Deliver stamped drawings and complete specifications for a coordinated site-wide distribution of:

a. Power

b. Grounding (including lightning, electrical, comms, and static discharge)

c. Fiber

B. Infrastructure Installation:

1. Complete install of new backbone infrastructure including all trenching, conduit, grounding, fiber, distribution hardware, switchgear, transformer, and connection of all existing facilities at MLO to this new infrastructure.

2. Grounding system - all connections to be bonded. The grounding system should be interconnected between all buildings (internal ground systems (if applicable) and power panel), conductive concrete locations, throughout the site-wide trenching, and back to the site-wide grounding rod.

3. Fiber - provide 24 strand OM#4 fiber pre, connectorized, with LC-LC Connectors.

4. Patch Panels- provide 2 U fiber shelves with 24 port panels to receive fiber at each building where fiber is being located.

5. Continuity testing and commissioning of OM#4 Fiber cable ports

6. Conductive concrete shall be used for any areas that the trenches are reinforced to meet code for road crossings.

7. New Smartmeter service for the entire site and individual sub meters to track energy to each building.

8. Removal of old infrastructure across the site including unused power poles, transformers, fencing, conduit, concrete pads, wire, utility vaults, etc

a. Wherever infrastructure is removed across the site, restore ground to match surrounding conditions and grade.

Contract Line Item No. 2: Option - Solar & Battery Storage - Tower Building

Solar & Battery Storage - Tower Building Roof

1. Relocate existing solar panels, racking, and battery storage system from the MLO

West building and install onto the Tower Science Building.

a. Current MLO West system includes one (1) Lithium Iron Phosphate battery

(13.5kWh) and six (6), 400-W solar panels, racking, switch, and subpanel.

2. Add additional solar panels to the roof of the Tower Science Building (~925 sq-ft) to completely fill the available space with solar generation. Estimated to be ~forty-two

(42) more panels, but could be more or less, depending on the final layout of panels and walkway/access requirements. Note: A walkway is required to access the aerosol stack on the northwest corner of the building between the solar panels.

a. The new workshop/garage facility roof (~700 sq-ft) could potentially also be used for solar panel installation and connected to the battery storage of the tower science building.

3. Right size the battery system for the Tower Science Building consumption and available roof-mounted solar generation and add additional Lithium Iron Phosphate battery pack(s) as required.

4. Include all additional racking, subpanels, switch, conduit, and consumable to make this solar array and battery storage system operation on the Tower Science Building.

Contract Line Item No. 3: Option - Solar Part I - 125 kW Ground-based Solar System

Installation of 125 kW Ground-based Solar System

1. In accordance with the site-wide infrastructure design plan, this option is for the purchase and installation of a 125 kW ground-based solar system.

a. Include all panels, inverters, wiring, racking, subpanels, switch, conduit, consumables, and any other components necessary to make this solar array fully operational and tied into the MLO power system.

b. System should only provide fixed-rack mounting to align with ideal incoming solar energy and reduce moving parts for cost and maintenance savings.

2. Installation must account for future work since this option is Part I of a multiple part project. The total PV system is planned at 500kW. Expect this work to align with design for a complete system to provide an off-grid power solution for MLO. As such, all conduits and components added for this option must be right-sized for all future solar work so additional system(s) can be added on without replacing any elements of this option. Including, but not limited to, all trenching for this option should include installation of additional conduits for future phases as appropriate.

3. Exact location of the ground-based array at MLO campus is TBD.

4. System must be engineered to withstand 150-MPH, 3-second wind loading to meet code compliance requirements.

5. All interconnection agreements and coordination with HELCO and/or permitting requirements shall be coordinated by the contractor on NOAA’s behalf.

6. System should be connected to the site-wide grounding and have lightning protection as appropriate.

7. To the greatest extent possible, system components should not be reflective and use darker colors to reduce potential impacts to site science (solar radiation) and visibility from Saddle Road.

Contract Line Item No. 4: Option - Solar Part II - 125 kW Ground-based Solar System

1. In accordance with the site-wide infrastructure design plan, this option is for the purchase and installation of a 125 kW ground-based solar system.

a. Include all panels, inverters, wiring, racking, subpanels, switch, conduit, consumables, and any other components necessary to make this solar array fully operational and tied into the MLO power system.

b. System should only provide fixed-rack mounting to align with ideal incoming solar energy and reduce moving parts for cost and maintenance savings.

2. Installation must be compatible with previous work and account for future work since this option is Part II of a multiple part project. The total PV system is planned at 500kW. Expect this work to align with design for a complete system to provide an off-grid power solution for MLO. As such, all conduits and components added for this option must be right-sized for all future solar work so additional system(s) can be added on without replacing any elements of this option. Including, but not limited to, all trenching for this option should include installation of additional conduits for future phases as appropriate.

3. Exact location of the ground-based array at MLO campus is TBD.

4. System must be engineered to withstand 150-MPH, 3-second wind loading to meet code compliance requirements.

5. All interconnection agreements and coordination with HELCO and/or permitting requirements shall be coordinated by the contractor on NOAA’s behalf.

6. System should be connected to the site-wide grounding and have lightning protection as appropriate.

7. To the greatest extent possible, system components should not be reflective and use

Contract Line Item No. 5: Option - Solar Part III - 150 kW Battery System + Cement Pad

Installation of 150 kW Battery System + Cement Pad

1. Installation of a cement pad and conduits to support a battery backup system for the

MLO facility that is aligned to the site-wide power distribution plan and goal to bring the facility 100% off grid. Pad and conduits should be scoped to account for future installation of 500kW of total solar power and 300kW of battery storage.

a. Cement pad and conduits should be designed and installed to accommodate this option and the future potential to provide additional battery backup (another 150kW) to the site.

2. Design, purchase and installation of a 150kW battery backup system for the facility.

3. Battery enclosure could be a sea container or other enclosure system provided directly by the battery manufacturer.

4. Exact location of the battery storage solution on the MLO campus is TBD.

5. Building/enclosure must be engineered to withstand 150-MPH, 3-second wind loading to meet code compliance requirements.

6. All interconnection agreements and coordination with HELCO and/or permitting requirements shall be coordinated by the contractor on NOAA’s behalf.

7. System should be connected to the site-wide grounding and have lightning protection as appropriate.

8. To the greatest extent possible, system components should not be reflective and use darker colors to reduce potential impacts to site science (solar radiation) and visibility from Saddle Road.

9. Include all environmental/safety controls recommended by the battery manufacturer for the battery enclosure that are site specific to MLO including, not limited to, design considerations, elevation, temperatures, solar gain, etc. to promote the longest battery life possible for the system.

Contract Line Item No. 6: Option - Solar Part IV - 125 kW Ground-based Solar System

1. In accordance with the site-wide infrastructure design plan, this option is for the purchase and installation of a 125 kW ground-based solar system.

a. Include all panels, inverters, wiring, racking, subpanels, switch, conduit, consumables, and any other components necessary to make this solar array fully operational and tied into the MLO power system.

b. System should only provide fixed-rack mounting to align with ideal incoming solar energy and reduce moving parts for cost and maintenance savings.

2. Installation must be compatible with previous work and account for future work since this option is Part III of a multiple part project. The total PV system is planned at 500kW. Expect this work to align with design for a complete system to provide an off-grid power solution for MLO. As such, all conduits and components added for this option must be right-sized for all future solar work so additional system(s) can be added on without replacing any elements of this option. Including, but not limited to, all trenching for this option should include installation of additional conduits for future phases as appropriate.

3. Exact location of the ground-based array at MLO campus is TBD.

4. System must be engineered to withstand 150-MPH, 3-second wind loading to meet code compliance requirements.

5. All interconnection agreements and coordination with HELCO and/or permitting requirements shall be coordinated by the contractor on NOAA’s behalf.

6. System should be connected to the site-wide grounding and have lightning protection as appropriate.

7. To the greatest extent possible, system components should not be reflective and use

Contract Line Item No. 7: Option - Solar Part V - 125 kW Ground-based Solar System

1. In accordance with the site-wide infrastructure design plan, this option is for the purchase and installation of a 125 kW ground-based solar system.

a. Include all panels, inverters, wiring, racking, subpanels, switch, conduit, consumables, and any other components necessary to make this solar array fully operational and tied into the MLO power system.

b. System should only provide fixed-rack mounting to align with ideal incoming solar energy and reduce moving parts for cost and maintenance savings.

2. Installation must be compatible with previous work since this option is Part IV of a multiple part project. The total PV system is planned at 500kW. Expect this work to align with design for a complete system to provide an off-grid power solution for MLO. As such, all conduits and components added for this option must be right-sized and compatible with previous work.

3. Exact location of the ground-based array at MLO campus is TBD.

4. System must be engineered to withstand 150-MPH, 3-second wind loading to meet code compliance requirements.

5. All interconnection agreements and coordination with HELCO and/or permitting requirements shall be coordinated by the contractor on NOAA’s behalf.

6. System should be connected to the site-wide grounding and have lightning protection as appropriate.

7. To the greatest extent possible, system components should not be reflective and use

Contract Line Item No. 8: Option - Solar Part VI - 150 kW Battery System

Installation of 150 kW Battery System

1. Design, purchase and installation of a 150kW battery backup system for the facility.

2. Building/enclosure must be engineered to withstand 150-MPH, 3-second wind loading to meet code compliance requirements.

3. Battery enclosure could be a sea container or other enclosure system provided directly by the battery manufacturer.

4. Battery enclosure and conduits required for this option may already be included in CLIN 5 - Verify and coordinate CLIN 5 & 8 to reduce duplication.

5. Exact location of the battery storage solution on the MLO campus is TBD.

6. All interconnection agreements and coordination with HELCO and/or permitting requirements shall be coordinated by the contractor on NOAA’s behalf.

7. System should be connected to the site-wide grounding and have lightning protection as appropriate.

8. To the greatest extent possible, system components should not be reflective and use darker colors to reduce potential impacts to site science (solar radiation) and visibility from Saddle Road.

9. Include all environmental/safety controls recommended by the battery manufacturer for the battery enclosure that are site specific to MLO including, not limited to, design considerations, elevation, temperatures, solar gain, etc. to promote the longest battery life possible for the system.