项目经济性
净电量结算
摘要
电网政策：多发电以零售价回购，抵消用电账单。
详细解释
Net metering allows solar system owners to feed excess generation back to the grid and receive a credit (typically at retail rate) toward their electricity bill. This effectively means the grid acts as a battery. Net metering is under pressure in many markets as solar penetration grows: Netherlands is phasing out "saldering" by 2027; California replaced net metering with NEM 3.0 in 2023 (much lower export credit); Australia has stricter feed-in tariffs. Net metering economics heavily influence residential solar payback periods.