Requirements for ground distributed energy storage

What is a distributed energy resource?

A Distributed Energy Resource (DER) includes both generators and energy storage facilities operating in parallel to the distribution system and capable of exporting active power to an EPS. An interconnection system or a supplemental DER device that is necessary for compliance with IEEE Std 1547TM-2018 is part of a DER.

Do I need a permit to install my energy storage system?

The local AHJ has issued a permit for the installation of your generation system (or Energy Storage system) and the supply (or line) side connection to the MSA. e. All Customer-owned electrical equipment, including MSAs, must satisfy the meter Clearances specified in the APS Electric Service Requirements Manual.

Should energy storage systems be transparent and non-discriminatory?

As energy storage markets grow, transparent and non-discriminatory interconnection standards for storage—whether standalone or BTM energy storage systems paired with DPV (“solar + storage”)—can help ensure a timely, cost-effective, and efficient process for developers, customers, and utilities. Figure 15.

What are the production metering requirements for static inverter based energy storage systems?

For Static Inverter based Energy Storage systems (“ESS”) (i.e., battery backup systems), Customer shall provide Production Metering provisions in accordance with APS Sample Diagrams. Isolation on both sides of the ESS Production Meter is required for Metering maintenance.

Who manages the data requirements for Distributed Energy Resource Studies?

The Affiliate (i.e., AEP Operating Companies (OpCo)) or the Non-affiliate entities manage their respective data requirements for coordinated Distributed Energy Resource (DER) studies on the distribution system. These requirements are located on their respective websites.

Can energy storage systems be connected in front of a production meter?

Guidance No. 2 for Interconnection of Energy Storage Systems Operated in Front of a Production Meter and Paired with Onsite Renewable Generation Connected Under a Net Metering Tarif.