Bakit Magkakaiba ang Singil sa Pangasinan? The Generation Mix Behind Every Electric Coop

Same province, same heat. But last January, one utility in Pangasinan was charging ₱7.34 per kWh while another was charging ₱11.80. The towns are just right beside each other, but the difference in rates is really big.

Every electric utility buys power from different power suppliers — through contracts or from the spot market. The mix of these sources is called the generation mix, and it's the biggest reason why rates differ kahit magkakatabi lang ang mga bayan.

Video Credit: Bilyonaryo News Channel 

What's Inside the Rate per kWh?

The rate you pay has two big parts:

  • Generation charge — the price of power from the power plants. This is the biggest part: in September 2026, around 50% to 60% of the total rate across the four utilities in Pangasinan.

  • Other charges — transmission (carrying power through the big lines), system loss, the utility's distribution, metering, subsidies, and taxes.

So when the generation charge moves, the whole bill moves.

Each Utility's Generation Mix (2026)

Contract vs. Spot Market: The Big Difference

The way a utility buys its power shapes how its rate behaves from month to month:


  • Contract (Power Supply Agreement): This works like a regular supplier (suki) at the market, with an agreed price and volume of power for several years. The rate is more stable, but it does not drop right away even when market power is cheap. That is why PANELCO III (around 93% coal) stayed within a ₱6.35 to ₱7.47 generation rate for the whole of 2026.


  • WESM (Wholesale Electricity Spot Market): This works like market prices that change every day (araw-araw), sometimes very cheap and sometimes very expensive, depending on supply and demand. PANELCO I, with around 93% sourced from WESM, had a generation rate of ₱2.77 in March but ₱8.06 in July, almost three times higher.


There is also important context for 2026. A national energy emergency was declared because of tensions in the Middle East. The ERC suspended WESM on March 26, 2026 and used a temporary pricing mechanism, and normal operations resumed on May 1, 2026. Hindi ito simpleng galaw ng merkado; malaki ang epekto ng mga pangyayaring ito sa singil.

Video Credit: One News PH 

3 Critical Steps to Avoid Surprises on Your Bill

Staying ahead of rate changes requires a mix of awareness and action:

1. Check the Generation Charge Every Month

This is the biggest part of your bill. Kung tumaas ito, your whole bill will likely go up even if your consumption did not change.

2. Cut the kWh You Buy

You cannot control the price, pero kaya mong kontrolin ang dami.

3. Make Your Own Generation

Rooftop solar is like having your own contract whose price does not move: every kWh your panels produce is a kWh you no longer buy from the coop.

This educational guide is brought to you by Lumenova Philippines as part of our ongoing public awareness campaign for safer Filipino homes and compliant electrical engineering practices.


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