Commercial developer Hamman Construction was seeking a way to switch a county building to use a majority renewable energy with storage capability to cut costs, lower peak demand, and provide decades of savings.
HES Renewables designed and built a Parking Garage Top Solar system consisting of 1,403 panels in a single 23×61 array with unobstructed, direct sunlight. The solar structure provides the additional benefit to employees and visitors of shade for vehicles on the top level of the parking structure. Excess energy production is first used to charge a Tesla Energy storage system, then sold to the utility to offset grid energy use.
The San Diego County tennant operates on 95% renewable energy consumption and less than 5% utility energy consumption. The solar Power Purchase Agreement (PPA) provides energy cost savings as well as cost stability for the tennant; the agreement also allows the county offices to consume over 950,000 kilowatt hours of renewable energy annually in place of grid energy. The PPA delivers immediate energy savings with zero investment from the tenant, and the property owner increases its Net Operating Income (NOI) on the property.


We are a San Diego-based solar energy production and energy storage installation company. We have been an energy innovator since 2001 and can handle projects from solar-only arrays to micro-grid solar and storage systems with on-site EV charging stations.
If you’re looking into the benefits of on-site energy production, energy storage, or EV Charging capability, we’d love to speak with you. We’ll show you how to lower and stabilize energy costs, receive the maximum incentives, open new revenue streams, and gain control over one of the largest expenses of your business or commercial property.
Click here to be contacted by an HES Renewables representative, or simply dial us at 866-HES-RNEW (866-437-7639).