SRES vs LGCs: Which Scheme Applies? Solar Junction

Solar Junction29 Sep, 2026Business

Confused about SRES and LGCs for your commercial solar system? See which scheme applies at 100kW and what's changing. Get expert advice. A solar system under 100kW usually falls under the Small-scale Renewable Energy Scheme (SRES) and earns Small-scale Technology Certificates (STCs) upfront. A system of 100kW or more currently sits under the Large-scale Renewable Energy Target (LRET) and earns Large-scale Generation Certificates (LGCs) instead, based on actual output over time. The government has proposed extending STC eligibility up to 1MW, so this threshold is about to shift for many mid-size commercial solar systems.