Got a client in Youngstown with a 7.2kW solar array and I'm seeing some weird numbers on their FirstEnergy bill. They're on Schedule R-6 net metering but the kWh offset calculation doesn't match what the inverter is showing. Client says they generated 847 kWh last month but FirstEnergy only credited them for 798 kWh. Anyone else seeing discrepancies like this with FirstEnergy's net metering? Could this be a meter reading timing issue or something more systematic?
FirstEnergy net metering calculation seems off
Jim, I've seen similar issues with Connecticut Light & Power's net metering program. The problem is usually in how they handle the monthly true-up calculation. They read the meter on different days each month, so if your client had a particularly sunny week right after the meter read, that generation might get counted in the next billing cycle. Check the actual meter read dates on consecutive bills - I bet you'll find the issue there. Also make sure they're not double-counting any time-of-use differentials.
Vince is right about the timing issue, but there's another problem I've seen with FirstEnergy. Sometimes their billing system doesn't properly handle the net excess generation rollover from month to month. In Tennessee with TVA, we see cleaner accounting, but Ohio's deregulated market creates more complications. Jim, have you verified that the inverter data matches the production meter? Some systems have separate production meters that might not be synced with the inverter display.
Terry, good point about the production meter. I need to get out there and do a physical verification. The client swears the numbers match but I've learned not to take that at face value. Vince, I checked the meter read dates and you're absolutely right - there's a 3-day variance between June and July reads. That could easily account for the 49 kWh difference. Still seems like FirstEnergy should have better systems in place for this.
Speaking from Georgia Power territory, we actually have pretty tight net metering accounting thanks to their Schedule NM-1 program. But I've worked with clients who moved from Ohio and they all complained about FirstEnergy's billing inconsistencies. The real issue is that Ohio allows multiple competitive suppliers, so the net metering credit might get split between generation and delivery charges differently depending on your supplier. Jim, who's the client's competitive electric supplier?
Derek, they're with Direct Energy as their supplier. That's a really good point about the credit allocation. I hadn't considered how the competitive market affects the net metering calculation. Let me dig into that angle - it might explain why the numbers seem off. The client just sees one bill but there are actually two different entities handling different parts of the credit.
Jim, I work with Direct Energy accounts here in Cincinnati and you've hit on exactly the right issue. Direct Energy handles the commodity charges while FirstEnergy handles delivery, and the net metering credit gets split between them based on the total bill composition. The 49 kWh difference is probably sitting in a different bucket than you're looking at. Check the delivery service section of the bill - you might find additional credits there that aren't obvious at first glance.
Cecilia, you nailed it! I found the missing kWh in the transmission credit section. Direct Energy was getting the generation credit but FirstEnergy was applying a separate transmission offset that didn't show up in the main net metering line item. Total recovery is actually 849 kWh when you add both pieces together. Thanks everyone for the help - this Ohio deregulated market keeps throwing me curveballs even after all these years.