The development of solar energy is very fast. Once more and more people accept this energy method, a large number of countries and enterprises will expand the input cost of it, such as the application of the off-grid home energy storage system we are most familiar with. After Tesla launched the Powerwall, more and more companies have participated in the development and production of Home batteries. Brands such as LG, Sonnen, BYD, #BSLBATT, and other brands are scrambling to enter the home energy storage market. Following a record 2019, The U.S. #residentialSolar market has an impressive start in the first quarter of 2020. The segment proved its resilience over the second half of the year, however, as installers transitioned to online sales models and demand recovered. The 3.2 GW installed in 2020 represent another annual record, with large sales pipelines boding well for 2021.