HES Solar deploys a BYD Energy Storage System with Energy Toolbase’s Acumen EMS™ Controls Software for Fortune 100 Client

HES Solar San Diego commercial solar panel array

Energy Toolbase was the largest BYD Chess system reseller in North America in 2021 

LAKESIDE, Calif. – [February 23, 2022] – Energy Toolbase, a leading provider of energy storage software solutions, has commissioned a behind-the-meter energy storage project with HES Solar, a San Diego-based, full-service solar development and installation company. HES Solar installed a BYD Chess energy storage system, integrated with Energy Toolbase’s Acumen EMS™ controls software, alongside a SunPower solar photovoltaic system for a Fortune 100 food and beverage industry client.

The 435-kW solar system, paired with a 240 kW / 532 kWh energy storage system, was sited at a newly built, 125,000-square foot distribution and warehouse facility in Lakeside, California. The Acumen EMS-operated energy storage system was designed to reduce the host customer’s utility bill through a combination of both demand charge management and time-of-use energy arbitrage. HES Solar has forecasted that the combined project will capture over $6 million dollars of electric bill savings over 25-years of operation. “HES Solar has been a long time, loyal user of Energy Toolbase’s modeling software,” said Ross Williams, CEO at HES Solar. “Our priority is to provide a safe and optimal storage system for our clients. We are excited to utilize both their Acumen EMS™ controls and ETB Monitor products as well.”

Energy Toolbase provides a cohesive suite of project modeling, storage control, and asset monitoring products that enable solar and storage developers to deploy projects more efficiently. HES Solar and the host customer will have full visibility into the solar and storage operation via the ETB Monitor platform, which provides a secure, web-based portal for the customer to view real-time system performance, bill savings, as well as create alerts, schedule dispatch commands and override events.

BYD and Energy Toolbase

In 2021, Energy Toolbase was the largest BYD Chess system reseller in North America. Energy Toolbase has fully integrated its controls software to work seamlessly with BYD energy storage hardware, enabling developers to efficiently install and commission their combined solution. Energy Toolbase has now commissioned or contracted its Acumen EMS on over 60 sites, totaling over 30 MWh of storage capacity, throughout the United States, Canada, and Mexico. Energy Toolbase rebranded its energy storage controls product to Acumen EMS™ in October of 2020, following its merger with Pason Power. 

“I consider advanced control capabilities to be the core competence of a competitive energy storage software company,” said Michael Liu, the Senior Director of Energy Storage at BYD. “Energy Toolbase and HES Solar have been great partners to work with and we are optimistic about deploying many more energy storage systems together in the future.”

About Energy Toolbase

Energy Toolbase is an industry-leading software platform that provides a cohesive suite of project estimating, storage control, and asset monitoring products that enable solar and storage developers to deploy projects more efficiently. Energy Toolbase’s SaaS products are used by over 1,000 distributed energy organizations worldwide. To learn more or request a free trial, visit https://www.energytoolbase.com.

Energy Toolbase is backed by its parent company, Pason Systems, a leading global provider of data management systems and controls automation software for the energy industry. With a global footprint and 40-year track record, Pason enjoys one of the strongest balance sheets in the industry and trades on the Toronto Stock Exchange under the symbol PSI. For more information visit: https://www.pason.com.

About HES Solar

HES Solar, formerly known as Home Energy Systems, is a local, family-owned, and operated, full-service solar company established in San Diego in 2001. The innovative company uses the best quality solar equipment by SunPower to create residential and commercial energy systems that are optimized for durability and performance. HES is also an Enphase Encharge certified installer, Tesla Powerwall, and Megapack certified installer as well as an EV charging station installer. HES is committed to customer satisfaction from Chula Vista to Poway to Murrieta and provides top-tier support as more clients gain energy independence through renewable, money-saving alternatives to utility power. 

About BYD 

The Official Sponsor of Mother Nature™, BYD, which stands for Build Your Dreams, is the world’s leading electric vehicle company with proven innovative technology for cars, buses, trucks, forklifts, and rail systems – like SkyRail. BYD is dedicated to creating a truly zero-emission ecosystem offering technology for solar electricity generation, energy storage to save that electricity, and battery-electric vehicles powered by that clean energy. BYD has 220,000 employees across the globe, including nearly 1,000 in North America. For more information, please visit www.BYD.com.


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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).

Robert Laverty

Senior Energy Consultant, Residential

Robert Laverty joined the HES team in the summer of 2018, bringing his ten years of solar design experience and his Bachelor’s degree from the University of Puget Sound with him. Robert is dedicated to finding solutions to help families produce and store electricity in order to reduce their reliance on grid power as well as help reduce their household’s carbon footprint. Robert’s experience as a newspaper editor as well as his involvement with the sustainability-focused Rocky Mountain Institute drives him to constantly seek out innovative ways to meet energy needs through renewable resources as well as helps him share those ideas with Southern California homeowners. When not at work or volunteering time with his church or community, Robert spends time with his wife and two sons or pursues his passion of fly fishing.

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