Microgrid Photovoltaic Energy Storage Ratio Paper

Can solar PV and battery energy storage systems improve microgrid resilience?

The proposed methodology and optimization process demonstrate their versatility and applicability to a wide range of microgrid design scenarios comprising solar PV and battery energy storage systems (BESS), making them a valuable resource for enhancing grid resilience and economic efficiency across diverse settings.

Which microgrid site has the largest sizing of PV and battery?

The California site has the largest sizing of PV and battery due to significant value from retail bill savings, demand response, and wholesale markets. The value achieved by the addition of PV and battery is large enough to offset the added cost of the microgrid, and this is the only site to have a positive net present value.

What size PV & battery should a microgrid be?

The proposed system suggests a PV size of 88 kW and a battery size of 97 kWh as shown in Table 2. These sizing configurations are notably different from those obtained through HOMER Pro and REopt, highlighting the algorithm’s ability to explore alternative solutions that optimize the microgrid’s performance.

Which microgrid has the smallest PV size?

The Maryland site has the smallest PV size of the three sites, but it has a large battery size relative to the PV size. The net present cost for the hybrid microgrid is about 19% lower than the diesel-only microgrid. The battery achieves significant revenue from the frequency regulation market.

Are hybrid microgrids a viable economic option?

Existing life cycle cost studies on hybrid microgrids—which combine photovoltaics (PV), battery storage and networked emergency diesel generators—also have not identified all the potential economic opportunities.

How to calculate the reliability of a hybrid microgrid?

The reliability is calculated using a Markov chain approach independent of the economic optimization, which is conducted using REopt, as described in the next section. These two approaches can be run sequentially to identify an optimal system. The hybrid microgrid consists of networked diesel generators, PV panels, and battery storage.