Intermittency in the contributions from some renewable energy systems into the electricity network and the need for resilience in the grid as it distributes power at times of high demand, create serious challenges to Regional Electricity Companies. Electrical Energy Storage Systems will play a key part in meeting such challenges.
To demonstrate the viability of such Electrical Energy Storage Systems (EESS) that are now being developed, they need to be installed and tested in real life conditions where there are potential constraint issues for local grids where these devices are embedded and where the local residual capacity for energy transfer is dynamic.
NEL can install EESS units at their Myres Hill Test Site where there are large wind turbines and suitable infrastructure for heavy electrical connections. We can then make measurements of electrical power at the grid connection point and the electrical energy recorded on the sites UKAS calibrated, settlement meter registers to assess performance. The power and current transformers are calibrated at a UKAS accredited laboratory.