Mae Hong Son sits on a weak, remote grid that has to do several jobs at once: smooth solar output, trim generation-side peaks, hold voltage, and cover emergencies. None of that works without a battery and a control layer built to run together.
Mae Hong Son Smart Grid
Mae Hong Son sits on a weak, remote grid that has to do several jobs at once: smooth solar output, trim generation-side peaks, hold voltage, and cover emergencies. None of that works without a battery and a control layer built to run together.

At a glance
What the client needed
What we delivered
PEC installed a 5,175 kW / 6,192 kWh battery system and designed the EMS that runs it, so one system shaves peaks, smooths PV output, holds voltage, and stands by for emergencies at EGAT's site.
Why this project chose PEC
This job needed both hardware sized for that much power and software that could coordinate four grid services at once. PEC brought the BESS engineering and wrote the EMS in-house, delivering the project with Italthai Engineering.
What happened in production
The system trims generation-side peaks and steadies the Mae Hong Son grid day to day; it was commissioned in November 2023.