Tech giants Amazon have recently unveiled that they're installing an additional 4.074 MW of rooftop PV to it's fulfilment centre in Essex. The instalment will consist of 15,000 solar panels and will be accompanied by 3.77 MW's of Tesla Powerpack storage units; the planned usage of these will be to reduce grid stress/constraint at peak times of the day. The batteries will be charged by the local network grid leaving the large array of solar panels to directly power 18% of the centres annual electricity needs. 

Cases like these are becoming more common and prove the introduction of battery storage is a much needed asset to the UK energy market. Both commercial and residential storage will provide more control over usage and generation allowing us to manage our electricity accordingly. With the introduction of large battery storage assets, ideas such as Virtual Power Plants and blockchain can flourish leaving the traditional methods of energy trading far behind.