Role Analysis of 1MWh BESS Energy Storage in Emergency Power
Compared to traditional emergency power sources such as diesel generators, BESS offers several advantages. It is silent, emission-free, and requires less maintenance.
If a BESS product cannot meet these backup power requirements as mandated by the code or the Authority Having Jurisdiction (AHJ), an external backup power source needs to be provided. Options for backup power include local distribution network feeders (if available with sufficient kVA rating) or backup generators.
Project owners are also responsible for the electricity costs associated with the BESS auxiliary load during operation. The electricity cost for auxiliary loads depends on the energy consumption (kWh) and the pricing structure set by independent system operators or utilities. For example:
As discussed above, auxiliary power is a vital consideration in BESS project design and development. While it is an important aspect, a comprehensive approach, such as the total cost of ownership method, should be used for BESS product evaluation and selection.
While the industry is maturing quickly, there are still gaps because BESS remains a relatively new technology. One critical but often overlooked aspect of BESS project development is the technical requirements and financial implications of BESS auxiliary power. What Is BESS Auxiliary Load?
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