Net Metering in the Philippines, Explained

Net metering lets a grid-tied system push unused power back to the utility and get credit for it. It's worth understanding properly, because what it pays gets overstated constantly, usually by people selling systems.

The basics

It comes from the Renewable Energy Act of 2008, RA 9513. Customers with renewable generation up to 100kW can export surplus to the distribution utility and receive a credit on the bill. A bidirectional meter replaces your old one and records both directions.

The part people get wrong

Exported power is not credited at the rate you pay. It's credited at the utility's blended generation cost, which has been running around ₱5.20 per kWh. Your retail tariff is considerably higher than that.

Which leads to the single most useful habit for any solar owner:

A kilowatt-hour you use yourself is worth roughly twice a kilowatt-hour you export. Run the washing machine, the pump, the aircon during daylight. That's where the money is.

Think of net metering as a way to stop throwing away genuine surplus. Not as a way to earn from your roof.

Fees and how long it takes

• The meter. One-time charge, capped at ₱3,000 for residential customers under ERC rules from 2025.
• Processing. Distribution utilities have been working to a ten-working-day window as of 2026.
• Actual time to energisation. Realistically four to eight weeks once everything's in, because inspection and meter installation have to be scheduled around the utility's crew.
• Rollover. Amended rules allow unused credits to bank and roll over rather than expiring each billing period.

All of these sit with your DU or cooperative, not with your installer. If someone guarantees you a connection date, they're promising something they don't control.

The paperwork

Broadly: application form, single-line diagram, equipment specs and certifications, evidence the installation meets the Philippine Electrical Code, then an inspection. Utilities vary in the detail they want, and cooperatives vary more than utilities do.

Our electrical work follows the Philippine Electrical Code and local permitting requirements, and where a project needs utility coordination, net metering included, we handle that side with your DU or co-op.

So is it worth it?

For most on-grid systems, yes, because the alternative is giving surplus away for free. Two situations change the answer:

• Somebody's home all day. If you already use nearly everything you generate, there's little left to export and the benefit is modest.
• You have a battery. Surplus charges the battery first, so exports are lower by design.

Honestly, sizing matters more than net metering does. A system sized so most of its output gets consumed on site will beat a bigger one exporting heavily at generation rates. That's the calculation we run before recommending anything, and it's covered in the sizing guide.

Rules change. Figures here reflect what was published up to 2026 — confirm the current specifics with your own distribution utility before you rely on them.

If the paperwork is what's putting you off

It puts a lot of people off, which is fair. Single-line diagrams and utility forms are nobody's idea of a good afternoon.

If you're thinking about a grid-tied system, get in touch and we'll tell you honestly whether net metering is worth it in your case, and handle the coordination with your distribution utility or co-op if it is. Message us, call, or come and see us at the shop in Concordia, Bolinao.