Key takeaways


The United States has just hit a massive milestone with over five million solar installations, showcasing a key victory in our shift to clean energy. According to the data from the Solar Energy Industries Association (SEIA) and Wood Mackenzie, this impressive figure highlights just how quickly solar power is taking off nationwide. Although it took almost 50 years to get here, we're now on track for an even faster climb, with forecasts suggesting we might see installations double to ten million by 2030

A Remarkable Journey to Five Million

The path to five million installations began in 1973 with the pioneering grid-connected solar project. It was a slow start, taking 40 years to hit the one million mark in 2016. However, things have really picked up speed lately.

Since 2020, over half of all U.S. solar installations have been put in place, with more than 25% coming online in the last 20 months alone, following the passage of the Inflation Reduction Act (IRA). This law has supercharged the solar industry with significant incentives and support, boosting its growth and popularity like never before.

"Solar is scaling by the millions because it consistently delivers on its promise to lower electricity costs, boost community resilience, and create economic opportunities," said SEIA president and CEO Abigail Ross Hopper. He added that today, around 7% of homes across America are equipped with photovoltaic (PV) panels, and this number is set to climb to over 15% by 2030. As solar power takes a bigger role in our electricity grid, it's paving the way for communities to enjoy cleaner air and healthier lifestyles.

Solar Energy Industries Association (SEIA), Wood Mackenzie

Source: Solar Energy Industries Association (SEIA), Wood Mackenzie

Focus on Residential Solar

The spotlight in the report was on residential installations, with a whopping 97% of all solar setups in the U.S. falling into this category. This sector has been on a hot streak, setting new records for installations annually for the last five years—and it’s been a top performer in ten of the last twelve years, too. Homeowners are seriously getting into solar, seeing it as a smart move to keep their energy bills in check and driving major growth in the industry.

Right now, eleven states and territories across the U.S. have more than 100,000 PV setups each. The best solar companies in California were way ahead of the game with a whopping two million installations, despite some recent policy changes that stirred the pot in its rooftop solar market.

Not far behind, states like Illinois and Florida are quickly ramping up their numbers. For a snapshot, Illinois's solar count soared from a mere 2,500 in 2017 to over 87,000 today, fueled by encouraging policies such as the renewable portfolio standard and the Illinois Shines program.

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A Shiny Outlook

SEIA forecasts that solar installations in the U.S. will double to ten million by 2030 and triple to 15 million by 2034. It's not just homes getting in on the action; large utility-scale projects are also making a big impact. The latest report by the Energy Information Administration (EIA) backs this up, reporting that a huge 37 GW of new utility-scale capacity is set for 2024. That means a 41% jump in solar power generation over 2023, and the pace keeps up with another 25% increase expected in 2025.

Looking at the larger timeline, more than half of all solar capacity in the U.S. has been installed since 2020, and solar accounted for over half of the new electricity generation added in 2023. By 2050, solar is expected to be the largest source of generating capacity on the U.S. grid.

Economic and Environmental Impact

The SEIA report highlights the big economic perks of solar energy. It's a powerhouse for jobs, employing over 263,000 people across the U.S. Plus, solar provides communities with clean, affordable, and reliable energy, not only strengthening local economies but also enhancing their resilience.

Environmentally, the impact of five million installations is massive too. SEIA estimates that these setups displace 198 million metric tons of CO2 annually, which is equivalent to removing 22 billion gallons of gasoline from usage. It's similar to the effect of planting 3.3 billion trees, about the same number you'd see across Kentucky. What’s more, the amount of emissions these PV systems offset exceeds what's generated by everyone in New York City and Los Angeles together.

Obstacles and Open Doors

Even though there has been considerable progress, it hasn't come without its setbacks. Recent policy shifts in crucial markets, like the introduction of California's NEM 3.0, have drastically slashed the payments for solar energy sent back to the grid, shaking up the residential sector. But not all hope is lost—states like Florida are charting a different course, with the governor stepping in to veto a bill that would have made similar cuts to net metering credits

On the upside, technological progress and evolving business models are crucial in tackling these hurdles. For instance, adding battery storage to solar projects is becoming more popular. Just last year, 13% of residential setups included batteries—a figure that's predicted to double by 2028. This progression not only boosts the reliability of solar energy but also its stability.

Additionally, advances in typical solar panel efficiency and the way they fit into our power grids have made solar panels cheap and impressively effective. Now, high efficiency solar panels let homes and businesses squeeze more electricity out of smaller rooftop areas, boosting the value of their investment.

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Solar’s Spot in U.S. Energy

As the U.S. gears up for a greener future, solar energy is expected to shine the brightest in the coming years. EIA forecasts that it will spearhead the additions to the U.S. net generating capacity in 2024 and 2025, not including smaller rooftop installations. Solar’s quick adaptability and scalability make it a critical element of the U.S. energy strategy.

Natural gas is still a big player in electricity generation, but solar power is slowly eating into its dominance. Over time, as we add more high efficiency PV panels and pair them with sophisticated storage systems, our dependence on fossil fuels like natural gas will likely drop. This change will help reduce environmental damage and make our energy supply more secure.

Source: Energy Information Administration (EIA)

Source: Energy Information Administration (EIA)

Policy Support and Market Trends

Government policies are pivotal in ramping up solar energy adoption. A standout is the Inflation Reduction Act, offering substantial financial incentives for PV setups and energizing the industry. Additionally, state-level strategies, such as renewable portfolio standards (RPS) and net metering programs are also pushing solar forward.

Today, market trends show an increasing demand for solar power. With electricity prices only going up, everyone from homeowners to big businesses is on the hunt for smarter, more affordable energy solutions. Solar is a good choice for many, as it can lead to significant savings on electricity costs over time and offers protection from potential increases in prices.

What Lies Ahead

Looking forward, the outlook for solar in the US couldn't be brighter. The swift expansion and growing embrace of PV technology are charting a path towards a more eco-friendly, sustainable energy scene. But, to turn this dream into reality, we need to keep up the momentum, overcoming obstacles and capitalizing on the chances we uncover.

Investing in research and development is the secret sauce for pushing solar forward. Support from both federal and state policies must stay strong to boost solar energy and create a favorable market environment. Collaborating across the board—with industry leaders, government agencies, and community players—is crucial to tackle challenges and speed up our shift to renewables.

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The Final Takeaway

Hitting the five million solar installations mark in the United States is a massive win for the clean energy game. With the mix of solid growth forecasts, encouraging policies, and cutting-edge tech, solar power is quickly shaping up to become the dominant source of electricity. The advantages are obvious: harvesting sun's energy is not only planet-friendly but also planet-friendly. As the U.S. doubles down on solar, the dream of a cleaner, tougher, and economically charged energy scene is getting real.

Rewinding back to 1973, when the first grid-connected PV panel went live, to today’s staggering five million installations, the journey showcases just how far and fast the solar industry has evolved. The road ahead is ripe with chances for innovations, partnerships, and expansion. The United States has the opportunity to lead the global charge in renewable energy by leveraging solar power, ensuring a brighter and more sustainable world lies ahead.


Key takeaways

Key Highlights

  • Milestone Achieved: Over five million solar installations in the U.S., with a potential to double by 2030.
  • Rapid Growth: Accelerated from one million in 2016 to over five million, driven by policies like the Inflation Reduction Act.
  • Residential Dominance: 97% of installations are residential, with states like California leading.
  • Economic and Environmental Benefits: Significant reduction in CO2 emissions and creation of over 263,000 jobs.
  • Future Outlook: SEIA forecasts solar installations will triple by 2034, with continued policy support and technological advancements boosting adoption.


  • Solar Energy Industries Association (SEIA)
  • Wood Mackenzie
  • Energy Information Administration (EIA)
Jun 14, 2024
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