EDF North America are to provide a 1MW energy storage system to the San Diego Zoo, the unit is designed to reduce overall energy costs while also limiting emissions at the zoo. The zoo will utilise the battery to smooth out the spikes in every day energy use, thereby, lowering demand charges. The battery will also minimise energy costs by recharging the battery when wholesale electricity prices are low and then discharge the charged power when prices rise.

The contract offered by EDF will last 12 years and includes a shared savings agreement. EDF will also help finance the project and install the storage system; to help cover costs, San Diego Zoo have applied for a $1 million rebate from the California self-generation incentive programme.

The project is expected to be up and running by mid-2019.