As in EU ETS, operators can apply to enter the small emitter scheme if the installation:
emits less than 25 000 tonnes of carbon dioxide equivalent (CO2eq) each scheme year in the relevant period and has a total rated thermal input of less than 35 megawatts (MW) in the relevant period.
is a hospital.
Participants must opt out before the beginning of a phase. The next window to opt out will be in 2024, for reporting years 2026 – 2030.