Meralco Residential Rate Tracker: monthly overall rate and 200 kWh bill effect, January 2025 to August 2026

Key findings

1. Meralco's overall rate for a typical household (a residential customer consuming 200 kWh) was PhP 14.7833 per kWh in August 2026, down 0.0428 from 14.8261 in July 2026, which Meralco stated as a reduction of around PhP 9 on a 200 kWh bill.
2. Across the twenty billing months from January 2025 to August 2026, the rate was raised in twelve months and lowered in eight. The lowest overall rate in the series was January 2025 (11.7428) and the highest July 2026 (14.8261), both computed by Signal Trackers from the stated rates.
3. From December 2024 (11.9617) to August 2026 the rate rose 2.8216 per kWh, or 23.6 percent; from January 2025 it rose 3.0405, or 25.9 percent, equal to about PhP 608 a month more for a household that used 200 kWh in both months (Signal Trackers computation; not a change in an actual bill).
4. Ranked by absolute size of the monthly adjustment (a Signal Trackers computation from the stated rates), the four largest single-month moves were May 2025 (-0.7499), April 2025 (+0.7226, which Meralco attributed mainly to spot market costs), March 2026 (+0.6427), and August 2025 (+0.6268).
5. Meralco states its bill effect for 200 kWh as the month's adjustment multiplied by 200, rounded to the peso; the tracker checked this against all nineteen months with a stated peso figure and it held in every one.
6. In its August 2026 advisory Meralco states that a PhP 9.5 billion refund authorised by the ERC, equal to 0.5861 per kWh for residential customers over six months from August 2026, offset increases in transmission, taxes and other charges. In every advisory in the period Meralco states that its own distribution charge has not moved since a 0.0360 per kWh reduction in August 2022.

Monthly table, January 2025 to August 2026

The January 2025 adjustment is from December 2024's stated rate of 11.9617. The June 2025 overall rate (12.1552) is stated in the July 2025 advisory as the June rate; it equals May's 12.2628 less the June reduction of 0.1076. Every adjustment equals the difference of the two stated rates to four decimals, and every stated peso effect equals the adjustment multiplied by 200, rounded to the peso.

Scale a month's change to your own kWh

Without scripts: multiply the adjustment in the table by your kWh and round to the peso. Worked example in text: 300 kWh in March 2026, 0.6427 x 300 = 192.81, an estimated increase of about PhP 193 compared with February at the same consumption.

What Meralco said drove each month's change

These are Meralco's own explanations of its rate movements, taken from each advisory. Signal Trackers did not retrieve the ERC orders, spot market data, grid operator filings, or exchange rate series that would be needed to test them independently, so they are presented as Meralco's attributions, not as established causes. Where a component figure is given, it is the change in that component as reported by Meralco, not the whole of the month's overall adjustment.

Generation charge levels, where Meralco states them

Meralco states a generation charge level in some advisories and only the month-on-month change in others. The stated levels are listed below; months without a stated level are shown as gaps and are not interpolated. Generation is the largest pass-through component but it is not the whole rate.

Meralco states in every advisory in this period that its own distribution charge has not moved since a 0.0360 per kWh reduction for a typical residential customer in August 2022. That statement covers the distribution component only; the pass-through and regulatory components moved every month.

2026 refunds and regulatory items, as stated by Meralco

The following are Meralco's descriptions of ERC actions affecting 2026 bills. The ERC orders themselves were not retrieved for this Drop.

Sources and evidence

1. Manila Electric Company (Meralco), monthly rate advisories, January 2025 to August 2026, published in each billing month on the company's news and advisories listing at company.meralco.com.ph/news-and-advisories (posting day not captured; billing month certain); all twenty retrieved 6 September 2026. Each advisory is linked from its row in the monthly table. Text extracts are kept with the run record. Supports CL-01, CL-03, CL-04, CL-05, CL-06.
2. Meralco, "The 2026 Oil-Driven Energy Crisis", company.meralco.com.ph, undated 2026 page; retrieved 6 September 2026. link. Context only; no figures taken from it.

Claim IDs (CL-…) refer to the Signal Trackers verified claim register CR-20260906-01 for this Drop. Meralco's rates archive page (news-and-advisories/rates-archives) redirected to the company home page at retrieval, so the advisories were located individually.

Methodology

Every figure in the monthly table is taken from the opening paragraph of the named Meralco advisory: the adjustment, the overall rate for a typical household, the previous month's rate, and the bill effect for 200 kWh. Signal Trackers checked that each adjustment equals the difference between the two stated rates to four decimals, and that each stated peso effect equals the adjustment multiplied by 200 rounded to the peso; all nineteen months with a stated peso figure passed. Every claim was independently re-verified in a separate pass, which recomputed all of these checks.

Signal Trackers computations: the cumulative changes (2.8216 from December 2024; 3.0405 from January 2025), the percentages (23.6 and 25.9), the count of increases and decreases (twelve and eight), the highest and lowest months, the PhP 608 figure (3.0405 x 200 = 608.10), the bar lengths in the table, and the estimator's scaling of the adjustment to other kWh values. The four largest moves are selected by the absolute size of the monthly adjustment. The estimator rounds the absolute product to the nearest peso and reapplies the sign, which is how Meralco's own -8.56 for August 2026 becomes "around P9". No figure was interpolated.

Drivers, generation charge levels, and refund items are Meralco's statements from the same advisories and are attributed to Meralco throughout. No ERC order, spot market record, grid operator filing, or exchange rate series was retrieved.

Limitations

• "Overall rate for a typical household" is Meralco's phrase for a residential customer consuming 200 kWh in the Meralco franchise area. It is not an average household, an average bill, or a national figure, and it does not apply to lifeline, senior citizen discount, tiered, or non-residential customers.
• The PhP 608 figure is the change in the rate-based charge for 200 kWh held constant across January 2025 and August 2026. It is not a change in anyone's actual bill, which depends on consumption, discounts, tiers, and fixed items.
• The June 2025 rate (12.1552) is taken from the July 2025 advisory, which names it as the June rate; it equals May 2025 (12.2628) less the stated June reduction (0.1076).
• The estimator scales the month's rate adjustment to a chosen consumption. It estimates the change in the charge compared with the previous month at the same consumption; it is not a bill, and it omits discounts, tiers, fixed items, and changes in usage.
• Drivers and ERC actions are Meralco's own explanations of its own rate movements. No causal claim is made beyond what Meralco stated, and no ERC order was retrieved.
• The generation charge series is partial; Meralco states a level only in some months. Gaps are not interpolated.
• The series begins in January 2025 (with December 2024 as the reference rate). "Highest in the series" refers to this 20-month window only, not to any longer history.
• The posting day of each advisory was not captured; the billing month is certain.
• The September 2026 advisory had not been published at verification on 6 September 2026.
• Component changes quoted for a month (for example, generation up 0.5257) are changes in that component as Meralco reported them, not the whole of the month's overall adjustment.

Freshness

Freshness class F2 (monthly). Last verified 6 September 2026. Monitored source: the Meralco news and advisories listing at company.meralco.com.ph; Meralco typically posts the month's advisory in the second week of the month. Next expected: the September 2026 advisory. Each new advisory adds one row to the table, one option to the estimator, and one entry to the drivers list; the cumulative figures in the key findings are recomputed on each update. "Updated" for this Drop means a new month added or a published figure changed, not a routine check of the listing.

Version

v1.1, 6 September 2026. Changelog: v1 initial build covering January 2025 to August 2026 (6 September 2026). v1.1, same day: added the qualification that PhP 608 is a change at constant 200 kWh, not a bill; labelled the largest-moves ranking as a publisher computation with its selection rule; marked the truncated rate-bar axis on the bars and in the caption; added the Meralco listing link to Source 1; stated the rounding rule in Methodology; noted that channel and playlist are assigned at publication; removed the audience sentence from the abstract; added the June 2025 derivation to Limitations. No published figure changed. Drop ID D-20260906-c4e2. Evidence package EP-20260906-01; verified claim register CR-20260906-01.