In the U.S, for decades, the primary sources of electricity generation were coal and natural gas. Now it has changed, and solar energy has officially become the largest source of new power generation capacity. Solar energy has added over 30 gigawatts (GW) of new solar installations in a year. It is more than half of all the new electricity capacity added nationwide.
So, why is it outpacing natural gas, wind, and coal in new power projects? The cost of utility-scale solar prices has dropped by 80% in recent years. Along with this, the government policies, Federal incentives, and rising demand for clean energy are pushing solar to the front of the energy mix.
This article explains the U.S. power shift. Read the full article to learn how solar takes the lead in new U.S. power generation.
How the U.S. Power System Looked a Decade Ago?
A decade ago, the U.S. electricity system was very different than today and dominated by traditional energy sources like coal and natural gas. According to NREL, in 2025, the total U.S. electricity-generating capacity was 1,160 GW. Around 43% of total electricity was contributed by natural gas, 26.7% by coal, 9% by nuclear energy, and 1.9% by solar energy, with 6.4% by wind power.
At that time, many coal plants were still operating. Natural gas had become a cost-competitive fuel after years of low prices due to abundant production. Renewable energy was still in its early development stage.
Nearly two-thirds of all new grid capacity added in 2015 was from renewable resources. Among all the renewable energy resources, wind turbines led new capacity installations, followed by solar. The renewable energy was beginning to establish a clear growth trajectory.
How Solar Takes the Lead in New U.S. Power Generation?
According to data from the Federal Energy Regulatory Commission (FERC), in 2025, solar power contributed approximately 77.7% of the newly installed electricity capacity. This number is far more than the electricity capacity contributed by other energy resources, such as wind, natural gas, etc.
Also, in 2024, the newly installed electricity capacity by solar power was 81%, which was almost 50 GW. By March 2025, the solar capacity reached more than 184 GW. According to PV Magazine, the utility-scale solar plants grew from 96.9 GW in March 2024 to 128.6 GW in March 2025.
The reasons behind the rapid growth of solar power are:
- Less Costly: With the advanced technology, the cost to install and operate solar systems is continuously decreasing.
- Policies and Incentives: Federal and state policies, including tax incentives, have played important roles in the growth of utility-scale projects as well as residential and commercial solar.
- Fast Development: The solar projects can be developed and deployed faster than many traditional power plants.
- Distributed Solar Growth: Smaller rooftop and community solar systems now make up a significant portion of new solar growth.
Reference: Solar energy—A look into power generation, challenges, and a solar‐powered future
In Which States of U.S. Solar Growth Is Happening Fastest?
- California:
California is the leading solar state in the country. It is the top solar market because of its abundant sunshine, strong state policies, and early adoption of renewable energy goals. As of 2024, it has installed approximately 46874 MW of solar electric capacity. Between 2014 and 2023, the state had seen 324% growth in solar capacity.
- Texas:
With strong utility-scale development and favorable economic conditions, the state has added more new solar capacity than almost any other state. In 2023, the state added around 4996 MW of new solar capacity.
- Florida
Florida is often called the Sunshine State of the U.S. By the end of 2023, the state had installed around 10352 MW of solar capacity. This represented a strong annual growth of around 33%.
- North Carolina
From 2014 to 2023, the solar capacity of North Carolina increased by 874%. In this decade, it added about 6400 MW of new solar capacity.
Other high-growth states include Nevada, Georgia, South Dakota, West Virginia, Ohio, Arkansas, and Montana. These are the states with annual solar generation growth of over 50% in recent years.
Government Policy and Incentives Offered by the U.S.
- Federal Solar Investment Tax Credit (ITC):
This national incentive for solar energy is beneficial for both small residential systems and large commercial projects. Under this policy, homeowners and businesses installing solar systems can claim a tax credit equal to 30% of the installation cost on their federal income taxes.
- Modified Accelerated Cost Recovery System (MACRS):
Businesses and companies use this system to depreciate the cost of their solar equipment over 5 years. They can reduce taxable income in the early years after installation.
- Net Metering Policies:
Under net metering policies, the solar system owners are credited for the extra electricity they send back to the grid.
- Solar Renewable Energy Certificates (SRECs):
Some state programs issue this certificate for every 1,000 kilowatt-hours (kWh) of solar electricity generated. Owners of solar systems can sell these certificates to utilities that need them to meet clean energy requirements.
- State Incentive:
New York offers up to 25% of solar costs. Many states free solar equipment from sales tax and prevent solar installations from increasing property taxes. With the help of solar incentives and state-level programs, the solar cost can be reduced by 25% to 60% or more.
Reference: Government Incentives for Sustainable Clean Energy
How Does It Affect Electricity Prices?
The operating cost of solar panels is very low, as solar panels do not need any fuel or natural gas to generate electricity. It only depends on sunshine to generate electricity. So, the electricity generated from solar plants is bid into the market at lower prices than many fossil fuel plants.
More people are installing solar panels on their rooftops, so they draw less power from the grid. Drawing less electricity from the grid helps reduce their electricity bill.
Solar generation tends to be highest during midday and early afternoon. In these hours, electricity demands also increase. By supplying significant power during these hours, solar reduces the need for utilities to purchase more expensive electricity from fossil fuel plants.
Also, solar power has zero fuel cost. So, the prices of electricity generated from solar do not fluctuate with fuel price changes.
Solar energy helps reduce wholesale electricity prices. The low-cost generation, especially during peak demand hours, also moderates long-term retail rates. However, despite the downward pressure from solar, electricity prices in the U.S. continue to rise overall. It is because of factors such as factors like grid upgrades, transmission costs, etc. The electricity bill that consumers pay also depends on broader system costs and the rising electricity demand.
Comparison of Solar in New U.S. Power Generation with natural gas, wind, and coal
| Solar | Wind | Natural Gas | Coal | |
| New generating capacity added in 2024 (Approx Values) | 81.5% | 8.3% | 6.4% | 0.04% |
| Installed Capacity Share (2025) (Approx Values) | 10.98% | 11.8% | 42% to 43% | 14.9–15.3% |
| Role in New Power Mix | Solar is the Dominant source of new capacity additions. | Wind is the Second leading renewable in new capacity additions. | Still important, adding much less new capacity compared with solar and wind. | A few new installations |
How This Trend Affects Climate Goals?
- As the electricity generation through solar uses zero fuel, it reduces CO₂ emissions. An increase of 15% solar power could reduce 8.54 million metric tons of CO₂ emissions annually.
- The power generation by solar supports goals like carbon-free electricity by 2035.
- Power generation through solar and wind leads to cleaner power generation.
- Solar produces zero operational greenhouse gases such as sulfur dioxide (SO₂) and nitrogen oxides (NOₓ).
- The solar plants use less water than traditional power plants, protecting freshwater resources.
Conclusion
Solar takes the lead in new U.S. power generation, which means solar power is not just an add-on; it is the engine of growth in the U.S. power generation. The other traditional and renewable sources either grow more slowly or decline. States like California and Texas continue to add large amounts of capacity. Solar energy is a core driver of U.S. climate progress, also helping reduce wholesale electricity prices. As demand for clean, reliable power rises and the cost of solar gradually decreases in the next few years, solar may overtake other major power sources.
FAQS
- How much solar power was contributed by the U.S. in 2025?
According to data from the Federal Energy Regulatory Commission (FERC), in 2025, solar power contributed approximately 77.7% of the newly installed electricity capacity.
- Which is the leading solar state in the U.S.?
California is the leading solar state in the country. It is the top solar market because of its abundant sunshine, strong state policies, and early adoption of renewable energy goals. As of 2024, it has installed approximately 46874 MW of solar electric capacity.
Also Read:
- For the First Time, Renewables Beat Coal
- The Global Clean Energy Race: Who’s Ahead and Why?
- Liquid Air Energy Storage: How Liquid Air Can Store Renewable Energy for the Grid?
- Bikaner 1.4 GW Solar Project by Tata Power in Rajasthan
- Solar Farms on Old Landfills: How Unused Lands Are Powering Solar Energy Projects?
- Payback Period for Residential Wind Power: What Homeowners Can Expect
- Incentives and Rebates for Home Wind Turbine Installation
- What Are the Most Efficient Small-Scale Wind Turbines for Home Use?
- Where can I buy residential wind turbines with installation services?
- AI-Powered Wind Turbine: How It Optimizes Power Output?
- How Smart Wind Turbine Blades Are Redefining the Future of Wind Energy?
- A Technical Look at Offshore Wind Farms
- Can Wind Turbines Operate Efficiently in Low-Wind Regions? What You Need to Know?
- Why Taller Wind Turbines Produce More Power? The Real Reason Behind It
- A Step-by-Step Guide to Design a Small Wind Turbine System
- Can a Small Wind Turbine System Power Your Entire House? A Practical Guide
- The Evolution of Wind Power: How Wind Power Is Shaping the Future of Renewable Energy Grids?
- How Wind Direction and Speed Affect Wind Turbine Performance? A Complete Guide
- A Complete Guide to How a Wind Turbine Turns Air into Electricity: From Blades to Grid
- Importance of AI-Driven Predictive Maintenance in Wind Energy Systems
