A cleaner, cheaper way to power remote areas

MANILA, Philippines —  Across the country’s off-grid islands, keeping the lights on comes at a high cost.

Unknown to many, every Filipino household connected to the main grids helps shoulder the cost of delivering electricity to those areas.

Through the Universal Charge for Missionary Electrification (UCME), a non-bypassable charge reflected in monthly electricity bills, on-grid consumers subsidize power generation in off-grid communities, where electricity is more costly to produce and supply.

Since last month, consumers have been paying P0.3397 per kilowatt-hour (kWh) for UCME.

For a typical household consuming 200 kWh, this translates to an additional P67.94 in monthly electricity bills or roughly P815 annually.

But this added cost could be reduced if off-grid islands move away from their heavy reliance on diesel-fired power plants, according to a recent report by the Asian Photovoltaic Industry Association.

APVIA said replacing diesel generation with solar power paired with battery storage could significantly cut recurring fuel expenses, making electricity cheaper for remote communities.

The shift could also ease pressure on government finances by reducing the subsidies needed to sustain missionary electrification.

For 2026, the national government has allocated roughly P1.87 billion in direct subsidy to state-run National Power Corp. (Napocor) for its missionary electrification program.

APVIA said solar is now the cheapest source of new electricity globally, while batteries enable it to provide power even after sunset.

“Every peso spent hauling diesel to an island is a peso that comes back to Filipino households through the UCME or to the government through the budget. Solar and battery break that cycle,” APVIA Steering Committee chairperson Tetchi Capellan said.

Generating power in islands served by Napocor, most of which still depend heavily on diesel, averages around P18 per kWh.

In some remote islands, where fuel must be transported by sea, generation costs can climb to as high as P62 per kWh.

Yet residents typically pay only around P7 to P8 per kWh, thanks to subsidized rates.

The Department of Energy (DOE) is currently preparing a competitive bidding round for renewable power projects in remote, off-grid areas.

Through the auction, the DOE seeks to drive investments and accelerate the shift of those areas from diesel-based generation toward hybrid renewable power systems.

Napocor has identified 20 priority off-grid areas for the first auction round, targeting communities with a combined annual energy demand of around 367,000 MW-hours.

The DOE estimates that deploying hybrid power systems across all Napocor-served islands could cut UCME by half.

A cleaner, cheaper way to power remote islands may finally be within reach, but making it a reality is still a matter of when.