Overview
- Osinergmin said tariffs effective April 4 will rise on average 1.34% for homes on the national grid (SEIN) and 0.75% for SEIN commercial and industrial users.
- Isolated off‑grid systems that serve remote areas will see much larger changes, with average increases of 10.72% for homes and 12.37% for businesses.
- The SEIN adjustment comes from updates to the Fixed Charge and the Distribution Value Added, which reflect shifts in the wholesale price index, the exchange rate, and copper and aluminum prices.
- For isolated systems, the regulator cited formula updates to Effective Bar Prices influenced by diesel costs along with the same Fixed Charge and distribution updates.
- Despite April’s uptick, SEIN residential tariffs are down 1.61% for the year to date, underscoring how the monthly formula can move bills up or down over time.