IRENA: Solar with Firm Storage Costs Fall to $54/MWh

The levelized cost of solar energy paired with firm storage has fallen to $54 per megawatt-hour, according to the International Renewable Energy Agency (IRENA), as reported by pv magazine México. The figure marks an inflection point: dispatchable clean energy is beginning to compete directly with fossil fuel generation on cost.

The data carries particular weight for Mexico, where the debate has shifted from how much solar capacity to install to how to firm it up so it is available during peak demand hours. Falling battery costs are among the factors that have most rapidly changed the global equation.

IRENA notes that electricity is consolidating its position as the dominant energy vector in the international system, and that the renewables boom is opening new investment opportunities. For emerging markets, the challenge lies in translating those falling costs into financeable, grid-connected projects.

In Mexico's case, the combination of world-class solar resources and declining storage costs points to a clear window of opportunity, provided regulation and grid infrastructure keep pace. The Watt will continue tracking the evolution of these costs and their effect on the national pipeline.