Microgrid energy storage economics

Are energy storage systems more efficient than microgrids?

It is evident that energy storage systems with a higher efficiency provide the operating cost of the microgrid with more cost savings (e.g., LI and LA storage systems).

How many energy storage systems can be installed in a microgrid?

In Fig. 7 (a), the vertical axis shows the operating cost of the electric subsystem in the microgrid while the horizontal axis shows the capacity of a type of energy storage system. In this stage, the number of storage systems that can be installed is limited to one.

What is a microgrid?

Model and formulation A microgrid refers to a set of suppliers and consumers at the distribution level, such as distributed renewable energy sources (e.g., PV systems and WTs), dispatchable units (e.g., small-scale gas-fired units, diesel generators, fuel cells), energy storage systems, and residential and industrial consumers [ 48 ].

How much does a storage system cost in a microgrid?

Based on the analysis, CA and P2G systems have $58.12k and $115.83k annual costs of investment. However, LI and LA systems have $160.60k and $115.83k annual costs of investment, respectively. Aside from that, the impact of each type of storage system on the operation of the electric subsystem in the microgrid is examined.

How does a microgrid interact with a storage system?

As the microgrid is isolated, the interactions with the MG are equal to zero. However, in the presence of storage systems, it is indicated that the operation of renewable resources within the microgrid is more beneficial, as a result of the reduced loss of available renewable power.

Do microgrids have a techno-economic perspective?

A considerable number of studies have been conducted to investigate microgrids from a techno-economic point of view. These studies can be divided into two main groups, including the analysis of multi-energy systems and single-energy systems.