Chile’s decade-long overhaul of its power sector offers a case study in what works and what still falls short when a country pushes hard toward renewables. A new analysis of that transformation found that wind and solar buildouts can outperform even optimistic projections.
That happens when policy stays steady, procurement is well-designed, and governments clearly commit to phasing out carbon in the long term. But renewable growth alone is not enough: without equivalent investment in the grid and storage, the result is grid congestion, curtailed power, and reduced system efficiency.
One of the more notable findings concerns politics. The country’s current right-wing leadership hasn’t challenged the underlying case for renewables, even as the political conversation has shifted from climate targets to cost and competitiveness. With prices for wind and solar this low and the buildout this far along, whichever party is in charge simply presses on with the transition plans.
This dynamic has helped the transition survive a change in government largely intact. That resilience has paid off amid global instability. Because so much of its grid already runs on renewables, Chile weathered the recent global energy crunch better than many peers exposed to swinging international gas and oil prices.
Still, the analysis notes that new price spikes or supply crunches down the road can’t be ruled out. Adding even more renewable capacity, paired with improved grid flexibility and stability tools, would further reduce that exposure and shore up energy security over time.
The shift away from fossil fuels remains incomplete, however. Coal has come off the grid quicker than analysts predicted, yet any plant without a set closure date can legally keep running through 2040. Natural gas, meanwhile, is being positioned as a stopgap, with some proposals calling for old coal units to be converted to burn it instead.
The incoming administration has also hinted gas may end up carrying more weight in the power supply than previously planned. Together, those moves raise the odds of getting stuck with fossil infrastructure for decades and staying reliant on gas shipped in from abroad. Chile is now moving into a more complicated phase of its transition.
A power system leaning more heavily on wind and solar needs more sophisticated tools to stay balanced hour to hour and season to season. Getting that right keeps the lights on reliably and ensures the renewable capacity already installed is actually put to full use.
That task will only grow more pressing as electricity demand rises, with cars, factories, and buildings increasingly running on electricity rather than fossil fuels. Fortunately, more renewable energy companies like GeoSolar Technologies Inc. are emerging and bringing to market advanced clean energy systems that could further boost resilience in the different markets where they operate.
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