APERC Guidelines For Estimating Electricity Export During Solar Meter Malfunctions

In response to inquiries about calculating electricity units exported by Solar Net Meter (SRTPVS) consumers during periods when their meters are defective or not working, the APERC Regulation No. 4 of 2023 provides clear guidelines.

According to the APERC Solar Rooftop PV Regulation Clause 15, prosumers must follow all applicable regulations, including the General Terms and Conditions of Supply (GTCS), the Supply Code, and other relevant rules. This includes notifying the Distribution Company (DISCOM) before installing solar rooftop systems, agreeing to pay applicable charges, and adhering to technical standards set by the Central Electricity Authority (CEA).

When a meter is malfunctioning, energy export should be estimated using the average of the units recorded in the last three billing cycles before the meter defect occurred. This method is in line with GTCS Clause 7.5.1.4.1, ensuring consistency in addressing issues related to meter recording.

If the meter is stuck or not recording correctly, GTCS Clause 7.5.1.4.2 advises using the last accurate readings or average usage data for estimation. For meters that are defective, GTCS Clause 7.5.1.4.3 recommends recalibrating or replacing the meters and using historical data to estimate usage accurately.

These guidelines are designed to maintain transparency and accuracy when estimating the electricity units exported by solar net meter consumers during meter malfunctions. They ensure that regulatory compliance is upheld and that consumers are fairly treated despite the challenges of defective meters.