Is solar cheaper than gas?



Solar Panels: Cost Comparisons, Environmental Impact, and Government Incentives


Recent research conducted by BloombergNEF has painted a clear picture of the cost dynamics associated with solar and gas technologies today. This research suggests that solar is now cheaper than gas, particularly in the majority of the world. Moreover, a graphic illustrated by BeautifulNews further reinforces this cost comparison and serves to illustrate the advantages of solar technology as compared to gas.

In light of these findings, this article covers the cost comparisons between solar and gas, the environmental impact of these energy sources, and the impact of government incentives on the cost dynamics between these two energy sources. By providing a comprehensive overview of the research and its implications, readers will have a better understanding of the cost dynamics of solar and gas, as well as their environmental impacts.

The Cost Comparison: Solar vs Gas

Changes in Cost Comparisons Over Time

Since the early 2000s, the cost of solar energy has dropped significantly. As a result, the cost of solar energy has become increasingly competitive with natural gas in recent years. For example, in 2018, the levelized cost of electricity (LCOE) for rooftop solar was around 10-15 cents US per kWh compared to the LCOE of electricity generated from natural gas between 5-15 cents US per kWh.

Moreover, the cost of solar technologies has continued to decline due to increased economies of scale and technology advancements in this sector. As a result, the cost of solar energy has become increasingly competitive with natural gas and has now surpassed gas in many parts of the world.

Cost Advantages and Disadvantages of Solar and Gas

Despite the cost of solar energy now surpassing gas on a global scale, there are still some advantages and disadvantages to consider when comparing the cost of the two energy sources.

Solar energy offers several cost advantages when compared to gas. First, there are no fuel costs associated with solar energy as it is powered directly from the Sun. Moreover, the installation of solar energy often requires few additional investments such as transformers and power lines, making it a more cost-effective energy source in the long-term.

On the other hand, gas energy also offers some cost advantages. First, the cost associated with electricity generated from natural gas is generally cheaper than solar energy in some parts of the world. Moreover, the cost associated with natural gas tends to remain relatively stable regardless of market fluctuations.

Recent Cost Trends in Solar and Gas

Recent research conducted by BloombergNEF suggests that solar technology is now the cheapest energy source in most of the world. This research found that in 77 percent of the world, solar energy can be generated at a cost of 7 cents US per kWh while gas energy can be generated at 8 cents US per kWh.

Moreover, the cost comparison between solar and gas continues to favor solar in a majority of the world. As a result, many governments have shifted their focus towards expanding their investment in solar technologies in order to reduce their reliance on natural gas.

Impact of Solar and Gas on the Environment

Carbon Emission Reduction from Solar and Gas

The use of solar and gas technologies both have an impact on the environment, particularly in terms of carbon emissions. In particular, solar energy generation has been found to have a significantly lower impact on the environment compared to natural gas and other non-renewable energy sources.

For instance, the installation of a 5-megawatt solar system produces enough energy to power approximately 8,000 homes and emit only 10,000 metric tons of carbon dioxide in total over its expected lifetime. This is significantly lower than the carbon emission rate associated with natural gas which emits an average of 625 metric tons of carbon dioxide per megawatt hour.

Benefits in Long-term Carbon Savings with Solar

Additionally, the use of solar energy also offers long-term carbon savings when compared to natural gas. For example, in order to generate the same amount of energy over a 20-year period, solar energy requires the use of 180 metric tons of carbon dioxide while natural gas requires the use of 2,500 metric tons of carbon dioxide.

Thus, this research highlights the potential of solar energy in reducing carbon emissions and improving the environment in the long-term.

Government Incentives for Solar and Gas

Impact of Incentives on Cost

Government incentives play a key role in determining the cost of solar and gas technologies today. In particular, various federal and state incentives have been introduced in recent years to encourage the use of solar technologies.

For instance, the US Department of Energy’s Federal Investment Tax Credit (ITC) offers businesses and homeowners a tax credit of 26 percent on the cost of installing a solar system. Additionally, incentives such as sales tax exemptions, renewable energy certificates, and property tax discounts have also been introduced to make the installation of solar technologies more cost competitive with natural gas.

Pros and Cons of Various Incentive Programs

While various incentives have been introduced to reduce the cost of solar technologies, there are also some drawbacks to consider. For example, such incentives tend to have certain eligibility criteria that must be met in order to receive them. Additionally, many such incentives are only available for a limited time and may not be sustainable in the long-term.

Thus, the use of incentives may short-term cost savings but may also result in instability in the long-term as these incentives are often phased out or changed by government bodies.

Existing & Emerging Solar Technology

Cost of Installation for Solar Technology

One of the primary costs associated with installing solar technologies is the cost of the materials needed for the installation. Depending on the size of the system, these materials can include solar panels, batteries, inverters, and charge controllers.

On average, the cost of installing a 5-kilowatt solar system is around $13,000 US. However, the cost of installation may vary depending on factors such as the size of the system, the type of equipment used, and various government incentives offered.

Advantages of Emerging Solar Technology

Emerging solar technologies offer numerous advantages compared to existing solar technologies. For instance, newer photovoltaic cells such as perovskites and quantum dots are more efficient than traditional silicon-based solar cells, offering energy conversion efficiencies of up to 22-percent.

Additionally, these emerging solar technologies are also much cheaper to produce than existing technologies. For instance, the cost of installing a quantum dot solar panel is estimated to be around 25-percent less than a traditional silicon-based solar panel.

Pros and Cons of Choosing Solar Over Gas

When choosing between solar and gas, there are several factors to consider such as the initial cost of installation, long-term cost savings, and environmental impact.

The cost of installing solar technologies is significantly lower than gas. Additionally, solar technology also results in long-term cost savings due to the reduced fuel costs associated with solar. Furthermore, solar technologies also significantly reduce carbon emissions compared to natural gas.

On the other hand, selecting solar technology requires a larger upfront investment than gas systems and may result in added maintenance costs in the long-term. Additionally, solar technologies are dependent on weather conditions and require sufficient sunlight hours to generate energy.


In conclusion, recent research conducted by BloombergNEF suggests that solar technologies are now cheaper than gas in most parts of the world. Furthermore, solar technologies also offer environmental benefits such as lower carbon emissions when compared to natural gas. Additionally, various government incentives have also been introduced in recent years to reduce the cost of installing solar technologies.

Overall, the cost comparison between solar and gas now clearly favors the development of solar energy. Furthermore, the environmental benefits of solar energy make it an attractive and cost-effective energy source for businesses and homeowners today. As a result, the question of whether solar is cheaper than gas has now been answered in the affirmative.

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