LONDON, Feb 17 (Reuters) -
* Shell Energy Europe Limited, the energy marketing and trading division of Royal Dutch Shell has agreed a multi-year supply deal for power from a battery storage project in southwest England, the company said on Monday.
* The 100-megawatt (MW) power storage project is backed by China Huaneng Group and Chinese sovereign wealth fund CNIC, and is expected to be completed by the end of 2020.
* The two 50-MW batteries will enable Shell Energy Europe and its subsidiary Limejump to use renewable power in the area, the firm said.
* When fully charged, a 100-MW battery could hold 100 megawatt hours of electricity, enough to power about 10,000 homes for a day before being recharged. (Reporting by Nina Chestney Editing by Helen Popper )