Since wind and solar power have no fuel cost, they push the price down by replacing more expensive fuel-consuming power plants. As wind and solar gradually become the primary power supply sources, market prices will drop on average, but price variations are likely to increase. 2 percent over the past year, prompting a debate about the role of renewable energy adoption in driving up costs. Some claim renewables make electricity more expensive, while others argue renewables cut costs or are not the main driver of recent. Would getting all our electricity from wind and solar power raise the price of electricity? Yes—wind and solar are cheap and getting cheaper, but they do make the grid more complicated in ways that, today, would make electricity more expensive if we relied on them exclusively. May 30, 2023 Making. The latest cost analysis from IRENA shows that renewables continued to represent the most cost-competitive source of new electricity generation in 2024.