Harmony Energy Income Trust plc is a United Kingdom-based investment company. The Company’s principal activity is to invest in commercial scale battery energy storage and renewable energy generation projects, with an initial focus on a portfolio of utility scale battery energy storage systems (BESS), located in diverse locations across Great Britain. Its investment objective is to provide an attractive and sustainable level of income returns, with the potential for capital growth, by investing in commercial-scale energy storage and renewable energy generation projects, with an initial focus on a diversified portfolio of BESS located in Great Britain. The Company may invest in operational, under-construction or shovel-ready projects, and may also provide development finance to pipeline projects. It owns the Pillswood project with a capacity of 98 megawatts (MW) / 196 megawatt hours (MWh). It also owns the Bumpers Project with a capacity of 99 MW/198 MWh, located in Buckinghamshire.