In Germany, in most cases, neither environmental nor energy industry permits are required for battery storage system alone, though it must comply with the regulation on electromagnetic fields (26. BImSchV).
[pdf] Energy Savings Performance Contracts (ESPCs), also known as Energy Performance Contracts, are an alternative financing mechanism authorized by the designed to accelerate investment in cost effective measures in existing Federal buildings. ESPCs allow Federal agencies to accomplish energy savings projects without up-front capital costs and without special Congressional appropriations. The (EPACT.
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