Data underpinning research article "Techno-environmental analysis of battery storage for grid level energy services" ChowdhuryJahedul OzkanNazmiye GoglioPietro HuYukun VargaLiz McCabeLeah 2020 This file includes data from the National Grid, UK for electricity supply and demand which was modified according to the research methodology laid out in the paper here (<a href="https://doi.org/10.1016/j.rser.2020.110018" rel="noreferrer noopener" target="_blank">https://doi.org/10.1016/j.rser.2020.110018</a>). Also, all the data needed for reproducing figures presented in the journal article are also included in the data file.