San Miguel Power Association is proposing a pair of rate increases next year as it braces for an expected hike in power supply costs and deals with other inflation-induced pressures.

The access charge for single-phase, non-demand service — which accounts for 93% of SMPA’s roughly 10,000 members — would rise from $21 a month to $23 a month, an increase of 9.5%. Access charges would increase at a commensurate $2-a-month rate for other service levels. Energy charges would remain the same.

SMPA ...