Mercedes Mullins
The world is witnessing a transition from fossil fuels to alternative energy sources, and the question of affordability is central to this shift. Fossil fuels have long been the dominant source of energy, but their environmental impact has led to a search for cleaner alternatives. Renewable energy sources like solar, wind, and hydropower are increasingly popular, but are they a more affordable alternative to fossil fuels?
Several studies and reports suggest that renewable energy sources are not only cleaner but also cheaper than fossil fuels.
| Characteristics | Values |
|---|---|
| Cheaper energy sources | Hydropower, solar, wind, geothermal energy |
| Cheaper than fossil fuels | Yes |
| Cost of fossil fuels | More expensive over time |
| Cost of renewable energy | Decreasing over time |
| Cheapest renewable energy sources | Solar, onshore wind, offshore wind |
| Cheapest fuel source | Solar |
| Cheaper energy for households | Electric alternatives |
| Positive impact on the planet | Yes |
| Positive impact on the global economy | Yes |
| Positive impact on global emissions | Yes |
| Positive impact on air pollution | Yes |
| Positive impact on health | Yes |
| Positive impact on energy prices | Yes |
| Positive impact on climate change | Yes |
| Positive impact on energy security | Yes |
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What You'll Learn
Solar energy is now cheaper than fossil fuels
The cost of solar energy has decreased dramatically over the years. In 2024, utility-scale solar photovoltaic costs fell to 4.4 cents/kWh, 12% less than the previous year. In comparison, fossil fuel prices rose in 2023 to 10 cents/kWh. According to a 2022 study from Oxford University, switching from fossil fuels to renewable energy could save the world up to $12 trillion by 2050.
Solar energy is now one of the most affordable renewable energy sources globally, alongside wind and hydropower. Solar panels have become more affordable over time, with the average household able to install 10 panels for £7,026. Research by IRENA found that the cost of crystalline solar PV modules sold in Europe declined by around 91% between 2009 and 2022.
As renewable energy sources become more common, their associated costs are plummeting. This is good news for the global economy and the fight against climate change.
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Wind energy is also more affordable
The affordability of renewable energy sources compared to fossil fuels is a highly debated topic. While some sources claim that renewable energy is cheaper, others argue that it is more expensive and unable to replace fossil fuels. However, it is important to note that the cost of renewable energy has been decreasing over time. Solar energy and wind power are now among the most affordable renewable energy sources globally, and experts predict that these costs will remain low.
Wind energy, in particular, has become increasingly affordable due to technological advancements and improvements in turbine technologies. Wind developers have utilized increased turbine hub height and rotor diameter to increase energy output per turbine, making wind energy more cost-effective.
When comparing the cost of wind energy with fossil fuels, it is necessary to consider fuel costs, integration costs, operating costs, and tax incentives. The cost of fossil fuel energy remains stagnant or even increases due to rising fuel costs, while renewable wind energy costs are decreasing as the industry incorporates increased efficiencies and technological advancements.
Additionally, wind energy offers economies of scale, with developers investing in facilities greater than 100 MW. This allows for larger wind projects, such as the Judith Gap wind farm, which can provide highly cost-effective energy.
However, it is worth noting that some critics argue that wind energy is not always cheaper than fossil fuels. They claim that wind energy is intermittent and cannot replace fossil fuels for the majority of the world's energy needs. Additionally, they suggest that the complexity of integrating wind energy into the electric grid can make it more expensive.
In conclusion, wind energy is becoming increasingly affordable and is among the cheapest renewable energy sources. While there are conflicting views on its cost-effectiveness compared to fossil fuels, wind energy's decreasing costs, technological advancements, and economies of scale make it a competitive and attractive option for renewable energy development.
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Hydropower is another cheap renewable energy source
Renewable energy sources are becoming increasingly common, and their associated costs are dropping. In 2025, a study showed that over 90% of new renewable energy sources were cheaper than fossil fuels. This includes solar, wind, and hydropower.
The growth in regional energy networks has created new opportunities to widen access to clean, affordable electricity. Norway, Sweden, and Iceland produce at least 40% of their electricity using hydropower and have some of the lowest electricity prices in Europe. In 2021, Norway connected its power grid with Germany, allowing Norway to absorb excess wind power from Germany and save its hydroelectric reserves for periods of lower supply. Similarly, the North Sea Link between Norway and the UK enables both countries to maximize the use of their natural resources, providing everyone with reliable access to affordable sustainable energy.
Hydropower is a site-specific technology, and its costs can be minimized at the planning stage through the proper selection of location and design. However, like any major power-generating source, significant upfront costs are unavoidable. To foster the growth of hydropower, a mix of tax incentives and supportive policies is necessary.
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Geothermal energy is productive and economically friendly
Renewable energy sources are becoming more common, and their associated costs are dropping. Solar energy and wind power are among the most affordable renewable energy sources globally, and their costs are expected to remain low. In 2023, solar energy was 41% cheaper than fossil fuels, and offshore wind was 53% cheaper.
Geothermal energy is a renewable energy source that can be productive and economically friendly. Geothermal energy is heat energy from the earth, with "geo" meaning earth and "thermal" meaning heat. Wells can be drilled into the earth to tap into the energy in the form of naturally occurring steam and hot water. This steam or hot water can be brought to the surface and used for a variety of applications, including electricity generation and providing heat for buildings.
Geothermal energy can be a productive source of round-the-clock power where there are reliable, high-temperature resources. In 2018, the global LCOE of new geothermal plants was around $72 per megawatt-hour, 1% lower than the previous year. While this cost is higher than that of wind energy, geothermal energy may be a worthwhile investment in the long run.
Geothermal heat pumps (GHPs) are cost-effective in the long run, but they can be more expensive upfront due to the costs of ground heat-exchanger loops. The costs of building a geothermal power plant are heavily weighted towards early expenses rather than fuel to keep them running. Geothermal power plants also have a small footprint, using less land per gigawatt-hour than comparable-capacity coal, wind, and solar photovoltaic power stations. Additionally, modern geothermal power plants release no greenhouse gases, and they consume less water on average over their lifetime energy output than most conventional electricity-generation technologies.
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The switch to renewable energy will save money
The world is witnessing a "clean energy revolution", with renewable energy sources becoming more common and affordable. In 2025, a study by the International Renewable Energy Agency (IRENA) showed that more than 90% of new renewable energy projects were cheaper than fossil fuels. This is a significant milestone, as it indicates that the global switch to renewable energy has passed a "positive tipping point".
The cost of renewable energy reached a record low in 2018, and solar energy and wind power are now among the most affordable energy sources globally. Solar energy, in particular, has become 41% cheaper than fossil fuels, whereas, in the past, it was four times the cost. Offshore wind energy is now 53% cheaper and is the most affordable source of new renewable energy. Hydropower has also been providing cheaper electricity than fossil fuels, with the global weighted-average levelized cost being equal to or below the cost of the cheapest fossil fuel alternative between 2010 and 2018.
The affordability of renewable energy sources is driven by the fact that they do not require fuel to run. Fossil fuel plants, on the other hand, rely on expensive fuels like coal, oil, and natural gas, which are subject to volatile price fluctuations. By switching to renewable energy, individuals and countries can hedge against future price hikes and reduce their dependence on the energy grid.
The benefits of switching to renewable energy extend beyond cost savings. Individuals can lower their utility bills and reduce their environmental footprint. Additionally, some renewable energy systems, such as solar panels, can generate excess power that can be sold back to the grid, creating an additional source of income. Furthermore, as more people invest in renewable energy, the demand for fossil fuels will decrease, driving down natural gas prices across all sectors of the economy. This will benefit even those households and businesses that continue to rely on fossil fuels for their energy needs.
While the upfront costs of installing renewable energy systems can be high, there are government incentives and rebates available to help ease the financial burden. Additionally, renewable energy systems can pay for themselves over time, and grid-connected solar systems are particularly cost-effective due to the ability to sell excess electricity back to the grid. As such, the switch to renewable energy is not just environmentally friendly but also financially prudent, offering the potential for significant cost savings in the long run.
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Frequently asked questions
No, fossil fuels are not cheaper than alternative energy sources. In 2025, a study showed that more than 90% of new renewable energy projects are cheaper than fossil fuels.
Solar, hydropower, wind, and geothermal energy are all cheaper than fossil fuels.
Using alternative energy sources is better for the environment, as fossil fuels are the largest contributor to global climate change. Alternative energy sources are also more affordable and can help countries diversify their economies and protect themselves from unpredictable price swings.
Fossil fuels are expensive and are a major cause of air pollution, contributing to over 13 million deaths worldwide each year.
