Is my system eligible for Production Estimates? (MD) June 02, 2022 23:33 Updated Follow Systems in Maryland are allowed to have generation estimated by GATS, the SREC-awarding entity, if the system size is 10kW AC or smaller and does not have a revenue-grade meter. Related articles Revenue grade Is my system eligible for Production Estimates? (DC) What are production estimates? Will I receive SRECs for all the energy I've already produced? (MD) Do I need to report meter readings each month?