 Tax Extension Is Part of the 900 Billion COVID-19 Relief Bill Signed by President Trump VAN NUYS, CA ACCESSWIRE December 29, 2020 Capstone Turbine Corporation NASDAQ:CPST, the worlds leading clean technology manufacturer of microturbine energy systems, announced today that the 10 federal Investment Tax Credit ITC for microturbines and combined heat and power CHP projects was extended through the end of 2023 in the bi-partisan COVID-19 stimulus package. The legislation, signed by President Trump on Sunday, December 27, 2020, also extended the production tax credit PTC for renewable electricity from open and closed-loop biomass through the end of 2021. 