Costa Mar's hydro reserves fall as dry season deepens

The Federal Hydro Authority reported this morning that the cascade of reservoirs feeding Costa Mar's hundred-percent hydroelectric grid has slipped to 67 percent of full capacity—below the ten-year seasonal average of 72 percent for late October. The measurement station at Represa Central, which monitors the largest basin, recorded a fall of 1.2 meters over the past two weeks.

The slip matters because Costa Mar exports electricity to three federal regions under standing contracts. The Federal Treasury's latest reconciliation, filed in Meridian last week, commits the region to supply 18 megawatts to Tierra Verde through the dry season. The Marine Ministry in Puerto Azul has not issued a public statement, but sources close to the authority say the margin has narrowed to a point where any significant rainfall deficit in November could force difficult choices.

The timing arrives as federal budget negotiations enter their final month before the March 2027 election. Costa Mar's tourism operators and conservation groups have long argued that hydroelectric revenue should fund both energy export and reef protection. The dry-season squeeze may reshape that debate.