Solar power in Morocco's desert: bold vision, mixed results

A 250-meter solar tower in the Sahara symbolizes Morocco's green ambitions, but grid limitations and fossil fuel reliance temper the vision. | Contesto: cronaca

Punti chiave

• Solar power in Morocco's desert: bold vision, mixed results

Contesto

In the arid expanse of the Ouarzazate region, a 250-meter solar tower stands as a stark, gleaming monument to Morocco's ambitious energy transition. This centerpiece of the Noor Ouarzazate Solar Complex, operational for several years, is the world's largest concentrated solar power plant, a cornerstone of the nation's pledge to generate over half its electricity from renewable sources by 2030. The project, a multi-billion dollar investment, was designed to harness the relentless Saharan sun, providing power for over a million homes and positioning the North African kingdom as a potential green energy exporter to Europe. The vision behind the complex is as vast as the desert itself. By utilizing thousands of mirrors, or heliostats, to focus sunlight onto the tower's receiver, the technology generates intense heat to produce steam and drive turbines. Unlike conventional photovoltaic panels, this concentrated solar power method allows for the storage of heat in molten salts, enabling electricity generation for up to seven hours after sunset. This addresses a critical challenge of renewable energy—intermittency—and promises a more stable, dispatchable power supply, a key selling point for a nation seeking energy independence. However, the path illuminated by the solar tower is encountering significant shadows on the ground. Despite the plant's operational success, Morocco's electricity grid, a legacy of older infrastructure, is struggling to fully absorb and distribute the intermittent bursts of renewable power from Ouarzazate and other burgeoning wind and solar projects. This has led to curtailment, where clean energy is wasted because the system cannot handle it, undermining the economic and environmental rationale for the massive investments. Grid modernization is now a parallel, urgent priority. Furthermore, Morocco's energy landscape remains tethered to fossil fuels. To ensure grid stability and meet peak demand, the country continues to rely heavily on imported coal and natural gas. In 2022, coal-fired power plants still accounted for a dominant share of the energy mix. This duality highlights a central tension: the gleaming solar future is being built...

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Categoria: cronaca