Dry season tightens hydro margins as export demand climbs

Puerto Azul — The Costa Mar hydro grid is running closer to its operational edge than at any point in the past three years, the Federal Hydro Authority reported this week. Reservoir levels across the region's five major dams stand at 67 percent of capacity, compared with 71 percent on the same date last year. The decline reflects both the region's characteristically lean dry season, which runs through October, and a sharp uptick in power exports to Tierra Verde and Oriente Moderno, where demand has surged as their own energy costs climbed.

The squeeze has begun to reshape the region's planning. The Marine Ministry in Puerto Azul is reviewing dive-cooperative electricity quotas for the dry season, and several eco-lodges have voluntarily reduced air-conditioning loads to ease pressure on the grid. The Federal Treasury Ministry has not yet signalled whether export rates will be adjusted before the rains return in May.

Costa Mar's hundred-percent hydroelectric grid has long been a point of regional pride and a foundation of the conservation economy. The grid's stability depends on maintaining reserve margins of at least 12 percent during the dry season. Current projections suggest the region will meet that threshold, but with little room for error if rainfall patterns shift further.