According to the International Energy Agency, there are some circumstances where solar photovoltaic (PV) is now the cheapest electricity source in history. 4 This is because the price of solar has fallen sharply
The solar thermal system differs from solar photovoltaic in that the solar thermal power generation works through the concentration of sunlight to produce heat. The heat, in turn, drives a heat engine which turns a generator
In addition, three-quarters of new wind and solar PV plants offered cheaper power than existing fossil fuel facilities. Wind and solar PV systems will become more cost-competitive during the forecast period. The share of solar PV and wind
The newest edition of the study by the Fraunhofer Institute for Solar Energy Systems ISE on the electricity generation costs of various power plants shows that photovoltaic systems now produce electricity much more
Image: Renewable Power Generation Costs in 2020, IRENA. Solar photovoltaics (PV) – the conversion of light into electricity using semiconducting materials – saw project costs fall by 7%. IRENA reported that
Power generation from renewable energy technologies is increasingly competitive, despite fossil fuel prices returning closer to the historical cost range. The most dramatic decline has been seen for solar PV generation; the LCOE
Solar power, also known as solar electricity, is the conversion of energy from sunlight into electricity, either directly using photovoltaics (PV) or indirectly using concentrated solar power. Solar panels use the photovoltaic effect to convert
In 2023, an estimated 96% of newly installed, utility-scale solar PV and onshore wind capacity had lower generation costs than new coal and natural gas plants. In addition, three-quarters of new wind and solar PV plants offered cheaper power than existing fossil fuel facilities.
The table shows that solar electricity is some 20-50% cheaper today than the IEA had estimated in last year’s outlook, with the range depending on the region. There are similarly large reductions in the estimated costs of onshore and offshore wind.
Over the past 40 years, solar photovoltaic (PV) prices have fallen by over two orders of magnitude, and during the period 2010 to 2021, the global weighted-average levelized cost of energy of newly commissioned utility-scale solar PVs fell by 88% (ref. 5), making solar PVs cheaper than fossil fuel power in some parts of the world.
Between 2022 and 2023, utility-scale solar PV projects showed the most significant decrease (by 12%). For newly commissioned onshore wind projects, the global weighted average LCOE fell by 3% year-on-year; whilst for offshore wind, the cost of electricity of new projects decreased by 7% compared to 2022.
While solar got 89% cheaper and wind 70%, the price of electricity from coal declined by merely 2%. The stagnating price of coal power in the last decade is not unusual. The historical development of the price of coal power is nowhere close to what we’ve been seeing for renewable power.
Electricity generation from renewables is getting rapidly cheaper. What about its competitors? Let’s look first at coal. Why is electricity from coal not getting cheaper?
