What is a battery energy storage system checklist?

Checklist provides federal agencies with a standard set of tasks, questions, and reference points to assist in the early stages of battery energy storage systems (BESS) project development.

How do energy storage contracts work?

For standalone energy storage contracts, these are typically structured with a fixed monthly capacity payment plus some variable cost per megawatt hour (MWh) of throughput. For a combined renewables-plus-storage project, it may be structured with an energy-only price in lieu of a fixed monthly capacity payment.

What are the operational limitations of energy storage?

Operating Limitations: Energy storage resources may be subject to operational constraints that do not affect traditional generation projects. For example, certain battery technologies will degrade more quickly if the state of charge is not actively managed within a certain range.

What is battery augmentation?

Battery projects tend to degrade over time and augmentation can be used to restore a project to its former capabilities from an energy storage capacity standpoint. However, augmentation is not limited to this purpose and can also be used to increase the capacity of an existing resource beyond its original capabilities.

What is augmentation in energy storage?

Augmentation: In the context of energy storage, “augmentation” refers to the process of adding storage capacity to a project over time and is typically seen in the context of battery energy storage projects.

Can energy storage resources be financed on a nonrecourse basis?

Key Finance-ability Provisions: Energy storage resources may also be financed on a nonrecourse basis and, like any other project financed in such manner, will need to address issues upon which nonrecourse lenders will focus, including assignment, events of default, performance requirements, key dates, and collateral.