Does energy storage deliver value to utility customers?

Energy storage (ES) can deliver value to utility customers by leveling building demand and reducing demand charges. With increasing distributed energy generation and greater building demand variability, utilities have raised demand charges and are even including them in residential electricity bills.

Can energy storage technologies reduce demand charges?

Demand charges are based on peak power, not energy, and therefore energy storage technologies have unique value potential for demand charge reduction since energy storage capital costs are a stronger function of energy stored than power delivered.

How long does an energy storage device last?

Lifetime: How many years or cycles an energy storage device can operate without significant performance degradation. Peak shaving: Discharging energy storage device during periods of high power demand to reduce grid power usage and reduce demand charge.

How much would a household pay for energy storage in January?

Applying a demand charge of $10/kW-month, which is on the high end of residential demand charges, this household would pay $56.40 in demand charge for the month of January. Energy storage devices could level this demand by charging during low demand hours and discharging during peak demand hours.

What is energy storage technology?

Energy storage (ES) technology can charge during low demand periods and discharge during high demand periods to reduce peak electricity generation and therefore curtail new gas-peaking turbines and transmission equipment.

Can Utility load data predict demand for space cooling?

Using Utility Load Data to Estimate Demand for Space Cooling and Potential for Shiftable Loads, National Renewable Energy Laboratory (US), Technical Report NREL/TP-6A20-54509 ( 2012 ), doi: 10.2172/1046314. CrossRef Google Scholar Pacific Gas & Electric Company: Thermal Energy Storage Strategies for Commercial HVAC Systems.