Can I Sell Solar Energy Back to Meralco? (2026)

5 days ago
5 min read

Yes — through Meralco's net metering program, you can export your excess solar energy to the grid and earn peso bill credits on your next statement. It's not a cash payout; instead, the credit is valued at Meralco's generation charge (lower than the full retail rate) and it lowers what you owe. Systems up to 100 kW qualify under Philippine law.

Net metering is why so many Batangas and CALABARZON homeowners go solar in the first place: your rooftop covers your daytime usage, and whatever extra it makes at noon isn't wasted — it feeds the grid and comes back as savings. With Meralco and co-op rates climbing again in 2026, every exported kWh is money you don't pay later.

What is net metering with Meralco?

Net metering lets a grid-connected customer generate their own solar power, use what they need, and push the surplus to Meralco's grid in exchange for peso credits. It's backed by the Renewable Energy Act of 2008 (RA 9513) and regulated by the Energy Regulatory Commission (ERC), so it's a real, standing program — not a promo.

The key thing to understand: you are not paid cash for your exported energy. Meralco credits you at the generation charge portion of the rate (often called the "blended generation cost"), which is lower than the full retail rate you pay per kWh. Those credits are deducted from your next bill, and unused credits can carry over to following months.

Am I eligible to sell solar back to Meralco?

You're eligible if you're a grid-connected Meralco customer with a renewable energy system rated 100 kW or below — which covers virtually all homes and most small businesses. The core requirements:

An active Meralco service connection in your name.
A net-metering-ready inverter — an On-Grid (grid-tie) or Hybrid On/Off-Grid system, not an off-grid one that's islanded from the grid.
A system ≤ 100 kW capacity (residential rooftops are usually 3–15 kW).
No major unpaid balance or connection issues on your account.

> Note for Batangas homeowners: parts of Batangas are served by electric cooperatives like BATELEC I and II, not Meralco. Net metering under RA 9513 applies to co-ops too — the process is similar, but you apply to your specific distribution utility. If you're not sure who your provider is, check the top of your electric bill.

What kind of solar system do I need to qualify?

You need a grid-tie (On-Grid) or Hybrid On/Off-Grid system — the inverter has to safely synchronize with and export to the Meralco grid. A pure Off-Grid system with no grid connection cannot net-meter because there's nothing to export to.

System type	Exports to grid?	Runs during a brownout?	Good fit for net metering
On-Grid / Grid-Tie	Yes	No	Best — lowest cost, maximum export
Hybrid On/Off-Grid	Yes	Yes (battery backup)	Yes — export plus brownout backup
Off-Grid	No	Yes	No — not connected to Meralco

Most homeowners who mainly want to cut their bill choose On-Grid. Those in brownout-prone areas add a battery (Hybrid) so they keep power during outages while still exporting surplus. Either way, the system must be configured net-metering-ready from the start.

How do I apply for net metering with Meralco?

The application runs through Meralco and, once approved, ends with a bi-directional meter and a signed Net Metering Agreement. The typical steps:

Install a net-metering-ready system (On-Grid or Hybrid) sized to your usage.
Submit the net metering application to Meralco with the required documents — system specs, single-line diagram, inverter and panel datasheets, and equipment certifications.
Meralco reviews the application and conducts a distribution impact study for your connection.
Pass inspection and testing of your installation.
Meralco installs a bi-directional (net) meter that measures both the energy you draw and the energy you export.
Sign the Net Metering Agreement — after this, your exported kWh start earning credits on your bill.

The paperwork (single-line diagrams, datasheets, certifications) is where most homeowners get stuck. This is exactly the part a proper installer handles for you — at Helios Optimum Solar, we design net-metering-ready systems and guide you through the whole Meralco application from documents to meter installation, so you don't face the utility process alone.

How are my net metering credits computed?

Your credit is the exported kWh × Meralco's generation charge rate, applied as a peso deduction on your next bill. Because you're credited at the generation charge (not the full retail rate that includes distribution, transmission, and other fees), a kWh you *export* is worth less than a kWh you *avoid buying* — so the biggest savings still come from using your solar directly during the day.

That's why sizing matters: an oversized system that dumps a lot to the grid earns credits at the lower export rate, while a right-sized system that you consume live saves you the full retail rate. We won't invent your exact peso figures here — the credit depends on your usage pattern, system size, and Meralco's current generation charge. For a real computation on your actual bill, ask us for a free consultation.

Frequently Asked Questions

Does Meralco pay me cash for my extra solar energy?

No. You receive peso bill credits, not a cash payout. The credits reduce your next Meralco bill, and any unused credit carries over to the following months rather than being paid out.

Can I sell energy back to Meralco with an off-grid system?

No. Off-grid systems aren't connected to the Meralco grid, so there's nothing to export. You need an On-Grid or Hybrid On/Off-Grid net-metering-ready system to qualify.

What's the maximum system size for net metering in the Philippines?

Under RA 9513, net metering covers renewable energy systems up to 100 kW. That's far above what a typical home needs — most residential rooftops are 3–15 kW, so homeowners are well within the limit.

Do I get credited at the same rate I pay per kWh?

No. Exported energy is credited at Meralco's generation charge (blended generation cost), which is lower than the full retail rate. This is why using your solar directly during the day saves you more than exporting it.

What if I'm in Batangas and served by a co-op, not Meralco?

Net metering still applies. Electric cooperatives like BATELEC I and II follow the same RA 9513 framework — you just apply to your specific distribution utility instead of Meralco. Check your bill to see who serves you.

Ready to earn credits on your bill? Let's talk ☀️

Gusto mo bang malaman kung kaya mong mag-net metering at magkano ang matitipid mo kada buwan? Tutulungan ka namin from system design hanggang sa Meralco application — libre ang quote at walang obligasyon.

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Dinidisenyo namin ang system mo na net-metering-ready, at gagabayan ka namin sa buong proseso para makuha mo ang bill credits mo. Helios Optimum Solar — malapit lang sa Batangas. 💛

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