Renewable power is increasingly cheaper than any new electricity capacity based on fossil fuels, according to a report recently released by the International Renewable Energy Agency (IRENA).
IRENA’s Renewable Power Generation Costs in 2019 report shows that more than half of the renewable capacity added in 2019 achieved lower power costs than the cheapest new coal plants.
The report highlights that new renewable power generation projects now increasingly undercut existing coal-fired plants. On average, new solar photovoltaic (PV) and onshore wind power cost less than keeping many existing coal plants in operation, and auction results show this trend accelerating – reinforcing the case to phase-out coal entirely. Next year, up to 1,200 GW of existing coal capacity could cost more to operate than the cost of new utility-scale solar PV, the report shows.
Replacing the costliest 500 GW of coal with solar PV and onshore wind next year would cut power system costs by up to $23 billion every year and reduce annual emissions by around 1.8 gigatons (Gt) of carbon dioxide (CO2), equivalent to 5% of total global CO2 emissions in 2019. It would also yield an investment stimulus of $940 billion, which is equal to around 1% of global GDP.
“We have reached an important turning point in the energy transition. The case for new and much of the existing coal power generation, is both environmentally and economically unjustifiable,” says Francesco La Camera, director-general of IRENA.
“Renewable energy is increasingly the cheapest source of new electricity, offering tremendous potential to stimulate the global economy and get people back to work. Renewable investments are stable, cost-effective and attractive offering consistent and predictable returns while delivering benefits to the wider economy,” he adds.
Renewable electricity costs have fallen sharply over the past decade, driven by improving technologies, economies of scale, increasingly competitive supply chains and growing developer experience. Since 2010, utility-scale solar PV power has shown the sharpest cost decline at 82%, followed by concentrating solar power (CSP) at 47%, onshore wind at 39% and offshore wind at 29%.
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