Case Studies


Gulf Coast Solar Center III - NAS Pensacola's NOLF Saufley

  • Bellview, FL
  • 50 MWac
  • Gulf Power

Coronal Energy partnered with Gulf Power, the U.S. Air Force, and the U.S. Navy to build 120 MWac of solar PV across three sites in Northwest Florida, providing clean and resilient power to ~18,000 homes.

Gulf Coast Solar Center II - NAS Whiting Field's NOLF Holley

  • Navarre, FL
  • 40 MWac
  • Gulf Power

Coronal Energy partnered with Gulf Power, the U.S. Air Force, and the U.S. Navy to build 120 MWac of solar PV across three sites in Northwest Florida, providing clean and resilient power to ~18,000 homes.

Gulf Coast Solar Center I - Eglin AFB Reservation

  • Valparaiso, FL
  • 30 MWac
  • Gulf Power

Coronal Energy partnered with Gulf Power, the U.S. Air Force, and the U.S. Navy to build 120 MWac of solar PV across three sites in Northwest Florida, providing clean and resilient power to ~18,000 homes.

Long Island Solar Farm

  • Upton, NY
  • 37 MW
  • Long Island Power Authority (LIPA)

Located at Brookhaven National Labs, the 37 MW and 190-acre Long Island Solar Farm will feed power directly into the Long Island Power Authority (LIPA) utility grid. This system will power local businesses, neighborhoods and cities. It also helps LIPA meet its commitment for renewable energy production.

San Bernardino Solar Farm

  • San Bernardino, CA
  • 36.5 MWp
  • Southern California Edison (SCE)

A 36.5 MWp utility-scale solar farm was developed across three distinct parcels. Approximately 28 MW is located on the largest parcel, while nearly 8 MW is located on the two combined smaller parcels. This interesting project utilized two DC voltages in the solar array and utilized a variety of equipment across the site to meet the customer’s financial goals.

Avalon Solar Project

  • Tucson, AZ
  • 35 MW
  • Tucson Electric Power

The 225-acre Avalon Solar Project generates enough emission-free solar energy to power 5,620 homes through Tucson Electric Power.

Lost Hills

  • Lost Hills, CA
  • 26 MWdc
  • Southern California Edison (SCE)

The 26 MWdc (20 MWac) Coronal Lost Hills project generates 54,620 MWh of emission-free solar power, the equivalent of taking 8,000 cars off the road. The project, built by Panasonic and Swinerton Builders, uses photovoltaic (PV) panel technology mounted on horizontal-axis trackers that rotate with the sun’s position in order to optimize electricity generation. This project contributes to Southern California Edison’s fulfillment of California’s renewable portfolio standard (RPS) requirements.

Cascade Solar

  • San Bernardino County, CA
  • 24.5MWp (18.5MWac)
  • Southern California Edison (SCE)

The Cascade Solar project is located north of Joshua Tree National Park in unincorporated San Bernardino County, California. We were hired to complete the full civil, structural, and electrical engineering, and manage the grading and building permit approval process. We coordinated very closely with the county planning and permitting offices to ensure the project met the county requirements while expediting the permit communications to achieve project commercial operation on schedule.

Gillespie Solar Generating Facility

  • Maricopa County, AZ
  • 20.2 MWp (16 MWac)
  • Arizona Public Service

We delivered the electrical, civil, and structural engineering while also designing in dynamic power curtailment and power factor control capability to meet Arizona Public Service standards for future grid functionality. The Gillespie Solar Generating Facility tracking system utilizes an inverter plant controller capable of curtailing the 16 MWac inverter system to 15 MWac per utility requirements, while also maximizing the plant output during low-production times to maximize client ROI and energy production to APS.

North Las Vegas Solar Farm

  • North Las Vegas, NV
  • 20 MWac
  • NV Energy

This is a utility-scale solar PV project located just north of Las Vegas. We completed the electrical and structural engineering, as well as on-site value engineering services. The site is positioned in the large watershed of a nearby mountain range. The continuity between our electrical and civil engineering design coordination and stormwater planning was critical early on for the project's ultimate success. The preliminary engineering for this project started in 2012 and was completed in 2013.

Montgomery Solar Farm

  • Biscoe, NC
  • 20 MWp
  • Duke Energy

This extensive 20 MWp solar farm project presented unique challenges for our electrical and civil engineering teams due to the site’s rolling terrain and subtropical climate. By utilizing alternative engineering design software, we were able to achieve an accurate energy model that simulated energy production based on the varying degrees of solar array slope.  

Five Points

  • Five Points, CA
  • 15 MW
  • Pacific Gas & Electric

The 15-MW project is part of PG&E's 250-MW Utility Owned Generation (UOG) PV Program. Our engineers employed the SOLON standard block sizing and innovative wire management to maintain a low-cost, high-efficiency installation.

Stanton Solar Farm

  • Orange County, FL
  • 5.9 MW
  • Orlando Utility Commission (OUC)

This is the first solar farm in this county,  and is located at the Orlando Utility Commission's Curtis H. Stanton Energy Center. The solar farm contains over 25,000 solar modules, mounted on single-axis trackers prominently visible from Innovation Way.

West Tennessee Solar Farm

  • Stanton, TN
  • 5.1 MW
  • Tennessee Valley Authority

The 25-acre farm is the largest solar generation facility in the state of Tennessee and still one of the largest in the country. This material is based upon work supported by the Department of Energy under Award Number DE-EE0000160. Funding Source: CDFA 81.041.

Somers Solar Center

  • Tolland County, CT
  • 5 MWac
  • Connecticut Light & Power

The Somers Solar Center is a 5 MWac solar farm located in the Town of Somers, Connecticut, with power sales to Connecticut Light & Power. The project was awarded under a competitive solicitation issued by the Connecticut Department of Energy & Environmental Protection, and is the largest operational project in the state.

Rams Horn Solar Center

  • Pitt County, NC
  • 5 MWac

The Rams Horn Solar Center is a 5 MWac solar farm located in Pitt County, North Carolina, with power sales to the North Carolina Eastern Municipal Power Agency (NCEMPA). It is part of one of the largest portfolios of solar projects in the Southeast – a 12-project, 60 MWac portfolio we developed between 2013 and 2014.

Flemming Solar Center

  • Pitt County, NC
  • 5 MWac

The Flemming Solar Center is a 5 MWac solar farm located in Pitt County, North Carolina, with power sales to the North Carolina Eastern Municipal Power Agency (NCEMPA). It is part of one of the largest portfolios of solar projects in the Southeast – a 12-project, 60 MWac portfolio we developed between 2013 and 2014.

Bearpond Solar Center

  • Vance County, NC
  • 5 MWac
  • Duke Energy Progress

The Bearpond Solar Center is a 5 MWac solar farm located in Vance County, North Carolina, with power sales to Duke Energy Progress (DEP). It is part of one of the largest portfolios of solar projects in the Southeast – a 12-project, 60 MWac portfolio we developed between 2013 and 2014.

Upchurch Solar Center

  • Wilson County, NC
  • 5 MWac

The Upchurch Solar Center is a 5 MWac solar farm located in Wilson County, North Carolina, with power sales to the North Carolina Eastern Municipal Power Agency (NCEMPA). NCEMPA consists of 32 cities and towns in eastern North Carolina – including some of the largest cities in the region – that own and operate their electric systems.

Red Hill Solar Center

  • Warren County, NC
  • 5 MWac
  • Duke Energy Progress

The Red Hill Solar Center is a 5 MWac solar farm located in Warren County, North Carolina, with power sales to Duke Energy Progress (DEP). It is part of a 60 MW portfolio commissioned in 2014.

Boseman Solar Center

  • Nash County, NC
  • 5 MWac

The Boseman Solar Center is a 5 MWac solar farm located in Nash County, North Carolina, with power sales to the North Carolina Eastern Municipal Power Agency (NCEMPA). It is part of a 60 MW portfolio commissioned in 2014.

Green Acres

  • Elk Grove, CA
  • 5 MWp (4 MWac)
  • Sacramento Municipal Utility District (SMUD)

This utility-scale solar facility is constructed in a 100-year FEMA floodplain and therefore required some special design considerations from our civil, structural and electrical engineering staff. We acted as the full service civil, structural, and electrical engineer for the project which is spread across 2 distinct parcels of property. We worked closely with the installing contractor and the utility to meet some stringent interconnection requirements.

Central Valley Portfolio

  • Farmersville, CA
  • 4.5 MW

The ground mounted system is capable of generating enough electricity for about 1,200 average-sized homes.

Shasta Solar Farm

  • Fall River Mills, CA
  • 4.4 MWp (3.0 MWac or 1.5 MWac per interconnection)
  • Pacific Gas & Electric (PG&E)

We were engaged to design and construct this solar facility on a tight schedule. We engineered the full project, obtained construction permits, and coordinated two separate interconnections with the utility company. The local distribution grid had some special needs and therefore we worked with the utility company to provide special inverter system ramp-rates and reactive power controls. This single-axis tracker system was designed to eliminate any grading at the site and therefore has minimal impact on this unique site's location. We continue to operate and maintain this solar facility under a long-term maintenance contract.

Gridley Solar Facility

  • Gridley, CA
  • 4.2 MW
  • Northern California Power Agency (NCPA)

We designed and constructed the Gridley Solar Facility in 2012. The electricity generated by the 25-acre project is directed to the City of Gridley and the Bay Area Rapid Transit (BART). Engineering and permitting was accomplished in nearly 8 weeks and construction was completed in approximately 18 weeks.

Horn and Ma Solar Facilities

  • Lancaster, CA
  • 4.1 MWp (1.5 MWac per interconnection)
  • Southern California Edison (SCE)

We provided the full scope civil, structural, and electrical engineering for the long-term system investor and owner. Our scope also included preparing the Storm Water Pollution Prevention Plan (SWPPP) and Dust Control plans and negotiating for the final construction permits. Our services also included assistance with bidding the project out for construction and providing construction phase engineering support to assist an aggressive commercial operation schedule.

Putah Creek Solar Farm

  • Yolo County, CA
  • 2.6 MWp
  • Pacific Gas & Electric (PG&E)

The Putah Creek Solar Farm is a distributed generation solar facility which we engineered and constructed in 2014. This is one of the first Electric-Renewable Market Adjusting Tariff (E-REMAT) program solar facilities to be installed on the California Independent System Operator (CAISO) controlled electrical grid. We co-developed the project and proposed the ideal solutions to fully permit and construct this solar farm while also maximizing the project's financial returns.

Haverhill Solar Project

  • Haverhill, MA
  • 1 MW
  • National Grid

Located on a former manufactured gas storage facility, this system now offsets the emissions produced in generating electricity for 200 homes. A unique design component was utilizing the eastward slope of the available land to maximize the PV system size.

Google Headquarters

  • Mountain View, CA
  • 1.9 MW

This extensive and architecturally complex campus required a forward-thinking design solution, including both rooftop and carport PV arrays.


  • Southern California
  • 90 MW Aggregate
  • Southern California Edison (SCE)

From 2010 to 2012, 90 MW was successfully deployed on 25 commercial solar rooftops in Southern California. Part of the initiative includes the largest single solar PV rooftop in the U.S. in 2011, with a rating of 8.55 MWdc on a 1.3M square foot building.

FedEx Ground Facility

  • Woodbridge, NJ
  • 2.42 MW

As of December 2009, this was the largest rooftop PV system in the United States. With the busy holiday season looming, there was zero margin for error for the grid-interconnection.

Walgreens Distribution Center

  • Woodland, CA
  • 1.15 MW

This project includes a flush mount system on a standing seam metal roof and a tilted racking system on a flat roof. Each system had a dedicated inverter to optimize the energy harvest.

Walmart Program

  • Southern California
  • 10 MW Aggregate

This 500 kW system in Glendora, CA is typical of Walmart’s multi-site solar initiative. We provided engineering and on-site construction management on 22 distinct sites.

REI Goodyear Distribution Warehouse

  • Goodyear, AZ
  • 2.2 MW
  • Arizona Public Service

During the past eight years, we've enjoyed a collaborative relationship with REI resulting in over 25 solar installations at REI locations around the country, and a solar portfolio of 5.4 MW.  Our latest rooftop solar project for REI is located at the REI Distribution Center in Goodyear. This 2.2 MW solar system will account for 100% of the center’s annual energy consumption and bring the outdoor retailer closer to its solar energy goals.


  • 23 stores, 8 states
  • 2.5 MW

We are the turnkey solar installer for REI's ambitious national multi-site solar initiative. We completed the engineering, procurement, and construction for 23 stores across 8 states, which were selected based on multiple feasibility studies we performed for REI. Depending on any given location, a solar-equipped store will generate 10–100% of its own electricity. The total capacity for the 20 stores is approximately 2 MW. The first round of this work started in 2008 with a total of 7 stores and 675 kW installed in California. The success from this initial program continues to lead to further feasibility studies and analysis with REI on their stores across the U.S.

Sony Picture Studios

  • Culver City, CA
  • 250 kW

This rooftop solar system was designed to offset Sony's high energy consumption on their movie studio sets. This complex roof layout and decking required careful electrical and structural design.

The Venetian Hotel

  • Las Vegas, NV
  • 116 kW

This unique carport is on top of the 15-story parking structure. Careful planning was required to design the carport attachment as well as routing conduit all the way down to ground-level.

The Conrad N. Hilton Foundation

  • Agoura Hills, CA
  • 115 kW

The renewable energy installation is positioned on the carport structure on the Foundation’s campus. The array is one component of the new Hilton Foundation campus strategy to be more energy efficient and environmentally responsible.

Sonoma Raceway

  • Sonoma, CA
  • 353 kW

Sonoma Raceway partnered with us to design and install 1,652 solar panel arrays at key campus locations. The arrays offset up to 41% of the racetrack’s electrical load. The results have significantly enhanced the facility’s existing sustainable practices.

Los Angeles Steel

  • South Gate, CA
  • 800 kW

We delivered complete construction plans, installation training and commercial solar energy system startup to help the installing contractor deliver an operational system.

Merchants Terminal Corporation

  • MD
  • 737 kW

In September 2010, Merchants Terminal engaged us as its owner’s advisor to take the next step in its plan to control energy costs and carbon footprint: the installation of a commercial scale, roof mounted solar array. After conducting a bid process that attracted top national and international bidders, we assisted Merchants with the selection of a design/build solution for a 737 kW system. We also managed bank financing, EPC, and O&M contract negotiation, and the sale of the system’s solar renewable energy credits (SRECs). The array, which is visible from I-95, was commissioned on April 29, 2011, and now provides 20% of the facility’s electric needs with free power. Payback on the system is expected to take less than six years.

House Foods America Corporation

  • Garden Grove, CA
  • 215 kW

House Foods is one of the largest fresh tofu and frozen food producers in the United States. The rooftop solar array adds clean energy to this state-of-the-art processing facility.

Abbott Labs Solar Campus

  • Alameda, CA
  • 548 kW
  • Alameda Municipal Utility

Franklin Realty engaged us to build this solar carport system for their tenant Abbott Laboratories. The system is comprised of a 548 kW net-metered carport system. 

Mariani Packing Company

  • Vacaville, CA
  • 1.11 MW

This single-axis tracking system provides a 12% increase in production over traditional fixed-rack systems, covering 23% of the Mariani plant’s entire electrical needs.

Fortinet Solar Campus

  • Sunnyvale, CA
  • 908 kW

The Fortinet Solar Campus project is a 908 kW net metered distributed generation solar photovoltaic system that covers two rooftops and three parking lots to power this corporate campus. We defined the project and proposed the ideal solutions to exceed the customer's expectations. We engineered and constructed this project in 2014 and continue to operate the solar facility to meet the intended financial returns.

Town of Breckenridge, Colorado

  • Breckenridge, CO
  • 650 kW

This project, consisting of seven separate solar arrays, was financed using a 20-year power purchase agreement (PPA) with the town. Electricity generation for the first full year of service is projected at 622,000 kWh.

E-470 Public Highway Authority

  • CO
  • 707 kW

Distributed across 22 separate Authority facilities, this 707 kW project was financed using a 20-year Power Purchase Agreement (PPA) with the Authority. Electricity generation for the first full year of service is projected at 1,013,500 kWh.

Camden Solar Center

  • Camden, NJ
  • 1.8 MWac
  • Camden County Municipal Utilities Authority

The Camden Solar Center is a 1.8 MWac solar project comprised of more than 7,200 solar panels spanning seven acres of open water tanks at a wastewater treatment facility. The project was commissioned in 2012 and sells power to the Camden County Municipal Utilities Authority.

Naval Facilities Engineering Command (NAVFAC) – US Navy

  • Mid-Atlantic & Southeastern United States

This program was part of the 2009 American Recovery and Reinvestment Act (ARRA). The goal of the project was to modernize existing naval facilities throughout the Southeast and Mid-Atlantic region with grid-tied photovoltaic systems.

Eastern Long Island Solar Project

  • Suffolk County, NY
  • 12.8 MW
  • Long Island Power Authority (LIPA)

The Eastern Long Island Solar Project (ELISP) is the largest combined carport installation in the state of New York with over 21 acres of solar panels installed across six different sites. The combined 12.8 MW photovoltaic system feeds power directly to local electric utility, the Long Island Power Authority (LIPA). We worked with a multidisciplinary team of engineering firms, contractors, and project stakeholders to meet various local and regional codes and standards.

Bay Area Rapid Transit (BART)

  • Richmond, CA
  • 160 kW

This solar rooftop system is on top of the BART maintenance shop building in Richmond. The system is completely ballasted and did not penetrate the rooftop's membrane, which was a strict requirement from the client.

Bay Area Rapid Transit (BART)

  • Hayward, CA
  • 255 kW

This rooftop solar system is mounted on top of the BART maintenance shop in Hayward. The building roofs were at different heights, with the center portion of the roof being about 10' higher than either side, so shading influenced the final array layout.

Mesa Top Photovoltaic Array

  • Golden, CO
  • 721 kW

The U.S. Department of Energy commissioned this single-axis tracker array for use at National Renewable Energy Laboratory. This was part of the Transformation Energy Action Management (TEAM) initiative for on-site renewable electricity generation.

Otay Mesa Water Treatment Plan

  • San Diego, CA
  • 944 kW

This unique facility for the City of San Diego includes a ground-mounted array as well as arrays built upon two storage tanks. This deployment for the City of San Diego is part of the city's plan to deploy 5 MW of solar capacity.

Las Gallinas Valley Sanitary District

  • Marin County, CA
  • 600 kW

At time of completion this facility offset 90% of the District's power needs. Engineering challenges included sensitive wetlands area, as well as developing a foundation solution for the 2-acres of bay mud.

San Francisco International Airport (SFO)

  • San Francisco, CA
  • 600 kW

This facility was commissioned for installation by the San Francisco Public Utilities Commission as part of the $100M public bond issued for solar projects. This unique array can be viewed from the airport's transit station.

Oakland International Airport

  • Oakland, CA
  • 750 kW

The aging electrical infrastructure at this site provided some interesting challenges for the Port of Oakland's first photovoltaic system. However, with the help of the Port's dedicated facilities team, the project was successfully completed.

Denver Federal Center Solar Park

  • Denver, CO
  • 1.2 MW

This solar energy project reduced the Federal Government Service Administration's energy consumption by more than 1,600 MWh per year; this is equivalent to powering 145 homes in Colorado.

California State Prisons

  • Blythe CA
  • 4 MW Aggregate

These two projects—Chuckawalla Valley and Ironwood—were part of the California Department of General Services distributed generation initiative. These solar arrays are separated by some distance, but connect into the same electrical distribution feeder.

USVA – San Diego

  • San Diego, CA
  • 250 kW
  • San Diego Gas & Electric (SDG&E)

This distributed generation rooftop solar electric project is an excellent example of what occurs to work around existing equipment and facility requirements. The project was specifically designed to meet the stringent U.S. government facility requirements. We provided the electrical and mechanical engineering services for this project and provided support during initial bidding, through final construction close-out.

U.S. Marine Corps Air Ground Combat

  • Twentynine Palms, CA
  • 1.5 MW

This installation was part of a larger renovation project at the complex at the U. S. Marine Corps Air Ground Combat Center (MCAGCC) and required close collaboration with all parties involved. 

We were able to provide valuable guidance on how to adapt the arrays to complicated architecture , and our use of 3D modeling software clearly and quickly conveyed to the team various design options. 

Our expertise in rooftop PV design, coupled with our experience working with Naval Facilities Engineering Command (NAVFAC), helped keep the project's ambitious schedule on track.

USVA - Sacramento

  • Sacramento, CA
  • 558 kW
  • Sacramento Municipal Utility District (SMUD)

The USVA Sacramento project focuses on increased energy savings through installation of a commercial solar rooftop and solar carport system. This system expands on the previously installed rooftop system by adding an acre of carport solar panels for a total of three acres of solar arrays, with a total expected output of 558 kW. The newly installed carport system is expected to generate approximately 832,000 kWh annually, while the rooftop system will generate 60,800 kWh. The solar carport system will also provide shade for vehicles and improved lighting at night. The entire solar generating facility will be interconnected and operate parallel to the Sacramento Municipal Utility District (SMUD).

University of Colorado, Boulder

  • Boulder, CO
  • 788 kW

The solar installation is located in the heart of the 220-acre CU Research Park, home to the Laboratory for Atmospheric and Space Physics (LASP), Center for Astrophysics and Space Astronomy (CASA), and the Jennie Smoly Caruthers Biotechnology Building.  The array is a ground-mount installation that will provide clean energy power generation to both research facilities and buildings throughout the Boulder campus.

Rutgers University

  • Livingston, NJ
  • 1.35 MW

This is the largest solar energy system to be installed on a college campus to date. The array was designed to accommodate the existing uneven topography of the site without having to perform extensive grading.

Colorado State University

  • Pueblo, CO
  • 1.1 MW

Engineering plans for this project were completed in only two weeks. Close coordination by a cross-disciplinary team of geotechnical, structural, civil, and electrical professionals enabled us to provide a solution for this complex site.

Touro University Nevada

  • Henderson, NV
  • 1,112 kW
  • NV Energy

Touro University Nevada is a non-profit institution established to address critical needs in health care education and to act as a resource for community service. The university pursued solar energy to eliminate a utility transformer upgrade while simultaneously reducing electricity costs.

Holliston Solar Facility

  • Pasadena, CA
  • 238 kW

This solar rooftop facility was part of the California Institute of Technology sustainability program. The solar modules are supported by an innovative space frame structure to allow for wide spans using fewer columns.

Palo Verde Community College

  • Blythe, CA
  • 1.2 MW

At commissioning, this solar facility supplied 80% of the college's energy needs. A new ballasted racking system, along with ideal site conditions, facilitated the completion of the project in record time.

Jefferson County Public School System

  • CO
  • 4.2 MW

Recognized by the White House for its innovative public-private partnership, the Jefferson County 4.2 MW solar arrays have been implemented into 30 schools.

Rolling Hills Preparatory School

  • San Pedro, CA
  • 165 kW

Being green is in the DNA of Rolling Hills Preparatory, which was built on the site of a former U.S. Navy facility. The 165 kW solar array is expected to reduce the school’s current energy bill by 80%. And during certain times of the year, the school will be transmitting energy back into the Southern California grid.

Hemet Schools

  • Hemet, CA
  • 4.4 MW across 17 sites
  • SCE

The Hemet Unified School District had the opportunity to reduce its electric consumption by installing solar arrays on rooftops and carports across the city's various campuses. 

The district ultimately installed solar across rooftops and carports at 17 school campuses. We provided the DC and AC electrical design for the power purchase provider. We delivered consistent engineering documentation and quality control processes to help multiple stakeholders successfully deliver these projects. Our team also contributed by providing system commissioning inspections and as-built drawings.