Your energy charges are the same whether you are an Annual Billing Option (ABO) customer or a Monthly Billing Option (MBO) customer. The difference between the two billing options is when you pay your energy charges.

• Annual Billing Option (ABO): With ABO, you are responsible for set fees each month, but you pay your net energy charges just once a year, at the end of your 12-month cycle.
• Monthly Billing Option (MBO): With MBO, you pay both your set fees and net energy charges in full every month, instead of a lump sum at the end of the year.

Both billing options have advantages: The ABO option offers you the simplicity of a single payment that calculates your total net energy for the year; the MBO option may benefit customers who want to avoid a potentially large balance due all at once. This can happen if your energy exceeds your solar generation, causing charges to build up over a year. You can always log in to My Account online to track your usage to see when you’re consuming energy from the grid. This can help you plan for a large end-of-year balance or decide whether to switch to MBO and “pay as you go.” 

If you are an ABO customer and would prefer to pay your energy charges monthly in more manageable payments, you can opt-in to MBO by logging in and submitting this form. It will take 60 days after your change request is processed for monthly billing to begin.

Once you’re enrolled in NEM, SCE tracks the amount of electricity exported to the grid by your solar system, as well as the amount of electricity you consume from the grid, during each billing period. We then calculate the “net” difference between the value of your consumed and exported energy to determine the final charges for your electricity. NEM doesn’t track all the energy your solar system produces, only the excess energy you provide to the grid.

If your solar system produces more energy than you need, NEM allows you to receive credit(s) for the surplus electricity you supply to the electric grid. Exported energy can lower your balance or, in some cases, offset it completely – it all depends on how much energy you produce versus how much energy you consume. If your excess energy balance is more than your total energy consumed from the grid, you’ll have leftover energy credit that will roll over into the next month. This credit will roll over every month through your 12-month billing cycle. At the end of that cycle, you either pay any remaining balance owed, or you may still have unused credit. If you still have unused credit when you receive your annual settlement statement, you may be eligible for a payout at the Net Surplus Compensation (NSC) rate.

Yes, any new energy storage device added to a previously approved NEM generator will be eligible under their respective NEM program, if it meets all tariff requirements. 

Yes. However, for systems that are less than 10 kW and do not have a Net Generation Output Meter (NGOM), Energy Export Credits are capped in accordance with the Paired Storage estimation methodology, as described in the tariff.

For systems over 10 kW, a NGOM, or other power control option, will be required to meter the generation of the system and properly identify any energy exported to the grid, specifically from the battery component. No credits are granted for exports that exceed the recorded generation from the renewable system. 

It depends on the size of your storage device. 

If your storage device has an inverter rating greater than 10 kW, you must adhere to the metering requirements listed in the NEM-MT section of the NEM Tariff. Options to meet these requirements include:

• Installing a Non-Export Relay on the storage device(s).
• Installing a Net Generation Output Meter (NGOM) directly to the generating system.
• Installing a Certified Power Control System.
• You can opt-in to installing a NGOM or non-export relay (if it is technically feasible to do so) instead. In this case, the NEM-MT metering provisions, as described in the previous paragraph, will apply.
• Please note that NGOM pricing for most projects is capped at $600. However, more complex projects may be subject to higher costs. The cost will be evaluated at the technical and engineering review stage.  

If your storage device has an inverter rating of 10 kW or less, no additional metering is required. Instead, SCE will use an estimation methodology to validate your eligible NEM credits. You can also opt-in to installing a NGOM or non-export relay (if it is technically feasible to do so) instead. 

Projects with NGOM metering are not eligible for the estimation methodology, as described in the NEM Successor Tariff.
 

The SBP does not have a discharge requirement; however, please note that incentive programs, such as the Self-Generating Incentive Program (SGIP) may require battery discharge at regular intervals. 

Battery systems in a NEM-Paired Storage (NEM-PS) agreement are charged by a renewable generator i.e., solar, wind, etc., but are not permitted to charge from the grid. 

If your storage device is paired with a NEM eligible generator (e.g., solar, wind, etc.), an Interconnection Application will need to be submitted.

Please Note: If the energy storage device is not paired with a NEM generator, then the interconnection application must be submitted to the Grid Interconnection and Contract Development (GICD) team as a Rule 21 Non-Export project. For questions regarding the GICD application process, please send an email to InterconnectionQA@sce.com. 
 

Acceptable file documents include: .docx, .xlsx, .csv, and .pdf files, whereas image files are not. While a clear picture of any of the required documents is acceptable for upload, the file containing the picture must be in .pdf format.

Any authorized signatory for such entities can sign the Consumer Protection Guide.