BATTERY ENERGY STORAGE SYSTEMS
Utility-scale storage can be charged from the grid without the need to be connected directly to any specific power plant.Utility-scale energy storage in the US tripled in 2021.
Energy storage addresses community resiliency needs by helping prevent prolonged outages during extreme heat or cold events or natural disasters.
Displacing fossil fuel-fired power plants' battery storage can reduce air pollution and improve public health outcomes in the communities where those plants are located.
BESS(s) meet peak energy demands in densely populated cities, reducing strain on the grid and minimizing spikes in electricity costs.
- ENERGY STORAGE - PROTECTING THE GRID & THE ENVIRONMENT
2020 Virginia Legislation -SB 851/HB 1526 – Virginia Clean Economy Act moves Virginia from the back of the pack to become a leader in the Clean Energy Economy. Both chambers of Virginia General Assembly have passed landmark legislation to achieve a 100% carbon free electrical grid and net-zero emissions by 2050.
Requires Virginia Utilities to construct or acquire 3,100 megawatts of energy storage capacity by 2035.
Requires APCo to construct or acquire 400 MW
Virginia currently has the largest energy storage procurement mandate in the US.
Storage is the flexible, dispatchable & instantly responsive resource needed with renewables to provide reliable power.
PROJECT SCOPE & VALUE
Utility-scale battery storage systems have capacities ranging from a few megawatt-hours (MWh) to hundreds of MWh. Land use (acreage) depends upon both power and duration. • Projects in Virginia generally 4hr duration
• 100MW/400MWh battery project uses ~7 acres
• 100MW solar project uses ~500 acres
• At similar CapEx, storage will use ~80-100x less land
The integration of Battery Storage into the grid is crucial to the future of our national power infrastructure. Value stacking is also compelling grid operators to adopt energy storage to solve vulnerabilities and improve ancillary services.
● Frequency regulation ● Spinning reserve ● Voltage or reactive power support ● Load following ● System peak shaving ● Arbitrage ● Load management ● Storing excess wind and solar generation ● Backup power ● Transmission and distribution deferral ● Co-located generator firming ●