Photovoltaic Energy Storage Project Department

Who are the 11 references for solar photovoltaics with energy storage?

11 References Ardani, Kristen, Eric O’Shaughnessy, Ran Fu, Chris McClurg, Joshua Huneycutt, and Robert Margolis. 2017. Installed Cost Benchmark and Deployment Barriers for Residential Solar Photovoltaics with Energy Storage: Q1 2016

What are the benchmarks for PV and energy storage systems?

The benchmarks in this report are bottom-up cost estimates of all major inputs to PV and energy storage system (ESS) installations. Bottom-up costs are based on national averages and do not necessarily represent typical costs in all local markets.

Should a solar project include battery storage?

In either a PPA or self-ownership, solar projects that also include battery storage are more complicated than solar-only projects since they need to carefully establish rules for how and when the battery is used. EECBG Program awardees interested in this option, should review the plans early with their local utility.

Are solar PPAs viable?

Solar PPAs are also viable when the solar project is not located on a government property, but the government receives the delivered electricity output. These so-called “Off-site” PPAs are popular with large energy users with insufficient space to host large solar arrays. A PPA is typically 15 to 30 years long.

How does colocating a PV & storage system save money?

Colocating the PV and storage subsystems produces cost savings by reducing costs related to site preparation; land acquisition; permitting and interconnection; installation; labor; hardware (via sharing of hardware such as switchgears, transformers, and controls); overhead; and profit.

Can battery storage and PV be colocated?

When PV and battery storage are colocated, the subsystems can be connected in either a DC- coupled or an AC-coupled configuration ( Figure 23). A DC-coupled system built using a bidirectional inverter connects battery storage directly to the PV array via DC-DC converters.