Technical FAQs 4

What is a battery energy storage system (BESS) & an uninterruptible power supply (UPS)?

Figure 1: A simplified project single line showing both a battery energy storage system (BESS) and an uninterruptible power supply (UPS). The UPS only feeds critical loads, never losing power.

Does a Bess need a separate ups?

While the BESS can start up quickly, it is not instant and there will be a brief voltage supply disruption during startup. As a precaution, the system will require a separate UPS to power sensitive or critical components, potentially including the controller for the BESS.

Should you buy a ups or a Bess system?

UPS systems are cheaper upfront. But their batteries wear out faster and aren’t designed for daily use. BESS systems are more expensive initially, but they offer long-term savings through energy arbitrage, grid incentives, and durability (especially with lithium iron phosphate batteries). Which One Should You Choose?

What is an uninterruptible power supply (UPS) system?

Courtesy: Affiliated Engineers Inc. Uninterruptible power supply (UPS) systems have been a familiar presence for years, known for their ability to enhance power quality and offer continuous power for critical loads. These systems typically supply power for a few minutes while the generator starts up.

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