Commercial solar installation under a net-metering tariff that credits excess at the retail energy rate. For three consecutive true-up periods the utility used the previous year’s rate instead of the current tariff rate. The difference is small per kWh but material on a 180 MWh annual excess. We have the tariff sheets and the three true-up statements. Utility is reviewing. Has anyone seen the true-up engine lag behind a rate change on net-metered commercial accounts?