Battery Energy Storage Systems FAQ

Operational Overview

What are Battery Energy Storage Systems (BESS)?

BESS projects are critical energy infrastructure that store electricity so it can be used when it is needed most. These projects increase reliability of the electric system and provide important services to the grid. BESS can be built co-located with an energy generation source (e.g. solar, wind, gas turbine) or as a standalone system.There are many different chemistries on the market for battery storage today, but the most common relies on lithium-ion battery cells. All chemistries are engineered with safety as the number one priority. The battery cells are housed in specially designed containers that ensure maximum performance and safety.

How much energy can BESS projects store?

The amount of energy a BESS can store per unit volume - known as the energy density - continues to increase. Today, a unit the size of a 20-foot shipping container holds enough energy to power more than 3.200 homes for an hour, or 800 homes for 4 hours (approximately 5 MWh of energy/container, 1.5 kW typical residential load). A typical utility scale project could contain up to 100 such units on only 5 to 10 acres of land. Such a project could supply energy to 80,000 homes for 4 hours.

How long do BESS projects operate? What happens to a BESS project at end of useful life?

Linea plans to operate its BESS projects for at least 20 years. This is the useful life of most BESS products today. Linea Energy is committed to the responsible decommissioning of its facilities at the end of operations, including the removal of all equipment and restoration of the land to its original condition. At the end of the project. Linea collaborates with manufacturers and recyclers to ensure safe removal from the site and the highest degree of recycling possible.The amount of energy a BESS can store per unit volume - known as the energy density - continues to increase. Today, a unit the size of a 20-foot shipping container holds enough energy to power more than 3.200 homes for an hour, or 800 homes for 4 hours (approximately 5 MWh of energy/container, 1.5 kW typical residential load). A typical utility scale project could contain up to 100 such units on only 5 to 10 acres of land. Such a project could supply energy to 80,000 homes for 4 hours.

Envionmental Impact

How do BESS projects help the environment?

BESS projects help support the buildout of clean energy resources, like wind and solar. There are many different chemistries on the market for battery storage today, but the most common relies on lithium-ion battery cells. All chemistries are engineered with safety as the number one priority.

Local Impact

How do BESS projects benefit the community?

BESS projects benefit local communities by generating consistent annual income for landowners, creating construction jobs, supporting energy independence and the clean energy transition, increasing tax revenue, and improving the reliability of the local electrical grid.

Health & Safety

Are BESS projects safe for people and the environment?

Yes. BESS projects do not contain or emit hazardous or dangerous materials that pose a contamination risk. National and International Standards Bodies such as UL (Underwriters Laboratories), and IEEE (Institute of Electrical and Electronics Engineers) have developed standards to ensure maximum safety, for example by requiring that a failure in a single cell cannot spread throughout a BESS unit. Procedures have been developed in conjunction with fire departments and first responders to ensure any potential accident -although highly unlikely - would result in a timely and safe response.

Do BESS projects produce noise?

Linea Energy designs projects and implements noise reduction strategies as needed to ensure that neighboring communities are not impacted. Tactics include vegetative buffers, increased setbacks, and additional screening. BESS project often only emit about 30-40dBA. This is comparable to the level of ambient noise in a rural community, or a low refrigerator hum.