Flexibility and Batteries

Why is flexibility important for the energy system? With the increase of renewable generation (such as sun and wind), the electricity system becomes less predictable. Flexibility helps absorb fluctuations and reduce grid congestion. This keeps the grid stable and affordable. TenneT and regional grid operators therefore encourage flexibility with compensation.

What are common forms of flexibility? Examples include battery storage, demand response, heat buffers, emergency generators, CHP installations and smart charging strategies for EVs. Also temporarily halting production or adjusting cooling/freezing installations is used. What works depends on your business profile.

How can I monetise my flexibility? Through participation in balancing markets (FCR, aFRR, mFRR), utilising imbalance prices or offering capacities in congestion management. This can be direct or via aggregators. With smart software you can respond to price signals and generate income with flexible capacity.

How do I determine the value of my flexibility? Value is determined by market prices, deployment options and technical parameters such as response time and duration. Simulations and business cases help map revenues and costs of flexibility deployment. For batteries, degradation also plays a role.

How does flexibility work in combination with a battery? A battery can switch very quickly and both charge and discharge. This makes it an ideal form of flexibility. You can trade in multiple markets simultaneously: balancing market, imbalance, self-consumption and peak shaving. Coordination between software, BRP and system operator is essential.

How do I optimise my battery for multiple markets at once? Use algorithms that combine real-time market data, weather forecasts and battery status. By setting priorities (e.g. FCR over imbalance), you maximise revenue. Aggregators or EMS providers often offer this smart optimisation logic.

What are the technical requirements for deploying flexibility? A metering setup with quarter-hour data, a communication interface, real-time control and registration with the correct market party (BRP, BSP, CSP). For some markets, test certificates and availability guarantees are required. The requirements differ per market.

What risks do I face when deploying flexibility? For example, imbalance costs if you control incorrectly, market risks due to price fluctuations, or loss of income during technical failures. There is also degradation risk with batteries. Good monitoring, maintenance and contract agreements help manage these risks.

How do I build an integrated flexibility strategy? First establish power, storage, network and operational constraints. Then compare market conditions, costs and scenarios. Distinguish historical results, forecasts and executable strategies; a positive calculation does not guarantee a return.

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