Feasibility study and layout plan for battery storage and grid
Battery storage feasibility study: we assess technology, economic viability and grid integration as the basis for your investment decision.
Our feasibility studies combine sound technology expertise with deep market and grid understanding. We analyse your storage project holistically and thus create a robust basis for viable investment decisions.
A feasibility study for a battery storage system answers several questions at once. Technically, it is about the ratio of power to capacity, the storage technology and integration into the grid. The form of connection must also be clarified: stand-alone on the grid, together with a generation plant at the same connection, or behind a consumer's meter, because metering concept, grid charges and procedures depend on it. For the grid connection, connection capacity, local grid structure and available capacity determine the grid level: with increasing capacity the connection is generally at a higher grid level, for large plants for example at the substation; the grid operator makes the determination. The application to the grid operator contains grid connection documents, the desired commissioning date and a site plan; for higher grid levels an operations management agreement may also be required, which is to be clarified with the grid operator. Depending on the grid operator and the connection procedure, the connection point and possible connection capacity are announced and the required agreements, such as the grid access contract, are coordinated. Which permit documents (such as building permit and electricity law permit) are to be submitted and when follows from the respective procedure, the connection conditions and the grid access contract; for commissioning, deadlines from the connection conditions and the contract with the grid operator apply.
Added to this is the view on permitting and economic viability. Whether a storage system requires an electricity law permit depends on the grid-relevant capacity; the thresholds are set differently by the federal provinces. Land zoning, building law, nature conservation and fire protection must also be clarified. For lithium-ion storage, distances, access for emergency services and fire water help determine how many units fit on a site, and for groupings of several units the draft fire protection guideline (TRVB 165) requires a suitable fire test. A layout plan shows how containers, inverters, transformer, access roads and clearance areas can be arranged on the plot, whereby, according to the guideline draft, at least one side of the installation area should remain accessible to emergency services. Economically, investment and operating costs over the service life count, as do battery ageing, the different grid charges for import and feed-in, and the intended use, because whether a storage system shaves load peaks, shifts feed-in or increases self-consumption determines cycles, ageing and revenues. With modern analysis methods we develop a reliable decision basis for a future-proof, economical and technically feasible grid integration, which also includes identifying suitable sites. The feasibility study is thus often the first step towards a viable, fundable project.
Consumption at the site is examined by the load profile analysis for storage and grid. The site search is handled by project development and land acquisition for battery storage; the grid concept is produced in the grid-technical concept development. The results also support project presentation and public relations on site. For photovoltaics there is the feasibility study for PV.
