News & Announcements

Orlando Utilities Commission Fuels Greener Grid with New Battery Storage System

Oct 11, 2023

Innovative Technology Will Increase Resiliency and Decrease Carbon Emissions as OUC Works Toward Clean Energy Future

ORLANDO, Fla. – Oct. 11, 2023 – OUC—The Reliable One is installing a 4-megawatt (MW)/8-megawatt-hour (MWh) battery energy storage system in St. Cloud. The project will increase grid resiliency and help achieve the utility’s 2050 Net Zero CO2 emissions goals.

Supplied by renewable energy company Ameresco, the Battery Energy Storage System (BESS) stores excess energy from solar and other generation to provide power during periods of low solar generation – such as during a storm or on a cloudy day – as well as during times when electric demand is high but solar may not be available (early morning/late afternoon/ evening). This ensures grid resiliency regardless of weather conditions.

OUC and Ameresco are working today (10/11) and tomorrow (10/12) to install BESS, which will be divided into two 2MW systems onsite – each comparable in size to a shipping container and weighing 75 tons apiece. The battery system will be installed using a crane at OUC’s St. Cloud Substation in Osceola County.

“The adoption of modern energy storage is essential to accelerate OUC’s path to net zero emissions,” said Attila Miszti, OUC Chief Operating Officer. “This project is a key investment to tackling the challenges of solar production intermittency. Battery storage will help ensure that while we implement clean energy resources like solar that are necessary for a sustainable future, we can still continue to provide the reliable service we’ve become known for over the past 100 years.”

Expected to be fully operational by mid-January, the new battery storage systems will enable a more seamless and efficient integration of solar energy into OUC’s grid.

OUC’s Electric Integrated Resource Plan calls for ending the use of coal no later than 2027 and sets the utility on a course to reach Net Zero CO2 emissions by 2050, with interim target carbon reductions of 50% by 2030 and 75% by 2040. The St. Cloud Substation Battery project is the latest of several clean energy milestones for OUC this year. In January, the utility celebrated its topping out on the first net-zero energy corporate campus to be built for a Florida utility, named the St. Cloud Operations & Maintenance Center, which will open in early 2024, followed by the July opening of one of the largest electric vehicle charging stations in Florida, known as the Robinson ReCharge Mobility Hub.

About OUC—The Reliable One

In June 2023, OUC—The Reliable One celebrated 100 years of providing exceptional value to its customers and community through the delivery of sustainable and reliable services and solutions. The utility provides electric, water, chilled water, lighting and solar services to more than 400,000 accounts in Orlando, St. Cloud and parts of unincorporated Orange and Osceola counties. As OUC prepares for the next century, it remains committed to its goal of achieving net zero carbon emissions by 2050 while supporting its community with conservation, sustainability and energy efficiency resources. Visit to learn more.