Here are three standout rooftop solar trends that emerged in 2022 – and how they impact consumers who want to switch to clean energy.
Rooftop solar trends in 2022
EnergySage has just released its 16th Solar & Storage Marketplace Report, and the online comparison solar and storage shopping marketplace shared it with Electrek for an exclusive first look.
Its calendar year 2022 report – which can be downloaded for free – looks at trends in rooftop solar pricing, equipment, marketplace share, and financing. The report draws from millions of transaction-level data points generated by quotes sent to homeowners in 2022 from solar companies in 41 states and Washington, D.C.
Below are three key insights that EnergySage identified in this new report. Electrek spoke with Spencer Fields, head of insights at EnergySage, and one of the report’s authors, about what those three takeaways mean for consumers going forward.
Solar prices rose over 6% year-over-year
Ongoing equipment supply constraints continue to impact pricing, as the quoted price of solar on EnergySage has increased to $2.85 per watt, a 6.7% increase since the lowest price in early 2021. The installed cost of energy storage is also up, increasing by $50 per kWh stored, or 3.9%, in 2022.
Spencer Fields’ Take: The solar market was affected by inflation like many other consumer goods were in 2022. Equipment supply constraints are certainly affecting the market, and that impacts the availability of raw materials or assembled products that are installed on a consumer’s home. Not only was it harder to get supply, but it also took longer to do so. So that contributed to the price of solar in 2022.
But on the positive side, solar prices increased at a slower pace than other consumer goods, and particularly electricity. Plus, the Inflation Reduction Act was enacted, which bumped the tax credit up to 30%, so it mitigates the inflation rate.
All of this highlights the importance of shopping around for rooftop solar. It’s important that consumers get at least three quotes to get the best price from a vendor they trust.
Residential market-share shifts for solar panel brands
In the second half of 2022, Qcells overtook REC as the most frequently quoted panel brand on EnergySage, with more than 25% of all quotes including Qcells panels. Additionally, as installers looked to secure their supply during shortages in 2022, the share of quotes represented by the top three brands on EnergySage continued to drop – from 66% in 2021 to 58% in 2022. Enphase remained the most quoted inverter and battery storage brand. (Editor’s note: Enphase is based in California, and its inverters are made in Mexico.)
Spencer Fields’ Take: A big part of the push of the Inflation Reduction Act, as well as tariffs on solar panels manufactured abroad, is to bring more manufacturing to the US. Qcells has a huge manufacturing expansion going on in Georgia, and it began the process of building out manufacturing capacity a few years ago, so they’re producing US-made solar panels.
Consumers are more aware of where their products are being made. Qcells is the player with the largest market share in the US. It has a robust supply chain in the US.
Installer brand loyalty continues to increase
In the second half of 2022, 59% of installers offered only a single inverter brand, the highest level of brand loyalty since EnergySage began tracking this information in 2014. Similarly, over one-third of installers only worked with a single solar panel brand in the second half of 2022, the highest level since 2015.
Spencer Fields’ Take: This finding belies the importance of getting multiple quotes since companies are working with single brands. That way consumers have access to multiple brands. One thing that’s unique to the solar industry is that most manufacturers are not household names – it’s not like makes of cars. So that makes it much more incumbent on the homeowners to do that little bit of extra research.
Consumers may be less likely to find installers with multiple packages. When it comes to inverters, for example, installers may be very familiar with that particular technology. So it should give consumers confidence that the installer is choosing to work closely with an individual brand and that consumers are paying appropriately for higher-quality equipment.
Photo: EnergySage
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The International Energy Agency (IEA) says renewables and AI are reshaping the world’s energy future, and that transformation is happening faster than anyone expected. In its new “World Energy Outlook 2025,” the IEA warns that energy security risks now stretch far beyond oil and gas. Critical minerals essential to clean tech, defense, and AI have become the new fault lines in global supply chains. The IEA also states that energy has become a central focus of geopolitical power struggles, making it one of the defining economic and security challenges of our time.
A more complex, electrified future
The IEA’s annual “World Energy Outlook” explores three possible scenarios for the future, emphasizing that none are predictions. Instead, they’re roadmaps that show what could happen depending on the choices governments and industries make on policy, technology, and investment.
Across every scenario, one theme stands out: electricity demand is surging faster than for any other form of energy. Electricity currently accounts for only about 20% of global energy use, yet it powers more than 40% of the global economy. Fatih Birol, the IEA’s executive director, said the trend is accelerating: “Last year, we said the world was moving quickly into the Age of Electricity – and it’s clear today that it has already arrived.”
Driving that growth are data centers, AI, and electrification across transportation, heating, and manufacturing. Global data center investment alone is expected to hit $580 billion in 2025 – even higher than the $540 billion the world will spend on oil supply.
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Shifting global energy dynamics
Emerging economies, led by India and Southeast Asia, are now shaping energy markets that were once dominated by China. These regions are experiencing a rapid increase in demand for power, mobility, and industrial energy use. By 2035, 80% of global energy consumption growth is expected to come from countries with high solar potential.
At the same time, the IEA warns that grid expansion and storage aren’t keeping up with this growth. While investments in power generation have jumped nearly 70% since 2015, spending on transmission and distribution has risen at less than half that pace. The agency calls for urgent grid upgrades and stronger government coordination to prevent future electricity bottlenecks.
Renewables and nuclear on the rise
Solar leads the charge across all IEA scenarios, with renewables growing at a faster rate than any other energy source. Nuclear energy is also making a comeback: after two decades of stagnation, global nuclear capacity is projected to increase by at least a third by 2035, thanks to both large-scale projects and small modular reactor designs.
Dave Jones, chief analyst at global energy think tank Ember, said, “The world is moving in the right direction, and continued acceleration can drive a more rapid transformation of the energy system. Renewables and electrification will dominate the future – and fossil-importing nations will gain the most by embracing them.”
Energy access and climate urgency
The IEA highlights two critical areas where the world is falling short: universal access to energy and climate goals. Roughly 730 million people still live without electricity, and nearly 2 billion rely on polluting cooking methods. Even in the agency’s most ambitious pathways, global temperatures surpass 1.5C of warming before potentially returning below that level later in the century.
Meanwhile, the effects of climate change are already disrupting energy systems. In 2023 alone, over 200 million households worldwide were affected by energy infrastructure failures, with transmission lines accounting for about 85% of incidents. The IEA says governments must prioritize resilience not only against extreme weather but also against cyberattacks and supply chain shocks.
Birol summed it up: “When we look at the history of the energy world in recent decades, there is no other time when energy security tensions have applied to so many fuels and technologies at once. With energy security front and center for many governments, their responses need to consider the synergies and trade-offs that can arise with other policy goals – on affordability, access, competitiveness, and climate change.”
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Now, Tesla appears to be teasing a launch in Colombia as it posted an image with the outline of the country:
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The confusing part is the fact that this was posted on Tesla’s official ‘North America’ account. The automaker doesn’t appear to have a South America or Americas account yet, despite having launched in Chile already.
Tesla won’t be the first automaker to sell electric cars in Colombia. It will have to compete with Chinese electric automakers BYD and Zeekr, which have already entered the market.
Colombia has a reasonably small auto market. From its highs of ~300,000 passenger cars per year in the 2010s, it has never recovered, and it currently registers about 200,000 new cars per year.
Electric vehicles still account for only a small share of the market, as more charging infrastructure needs to be deployed and more automakers need to launch electric models.
Electrek’s Take
This is excellent news. When Tesla launches in a new market, it generally deploys charging infrastructure—DC fast chargers, Superchargers, and level 2 chargers.
Electricity is relatively cheap in the country, and with the proper charging infrastructure, which Tesla excels at, it should help accelerate EV adoption in the country – even though Tesla’s own EV are on the expensive side for the Colombian market.
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Solid-state batteries have long been the holy grail of electric vehicles, especially for light EVs like electric bicycles that are usually charged indoors. They hold major safety benefits over traditional lithium-ion batteries, plus offer better energy density, making it possible to use smaller batteries or simply fit more capacity in the same-sized battery pack.
Solid-state batteries have spent decades being touted as five years away, but if you thought you’d have to keep waiting, then I’ve got news for you: yes, you still have to keep waiting.
However, in the meantime, semi-solid-state batteries are here and will be launched on their first production e-bike next month.
I had the chance to check out the batteries in person at EICMA 2025 when I visited with the company that makes them, T&D. The company was spun out of e-bike component maker Bafang (and founded by the same co-founder of Bafang, Sunny He) in order to move more in the direction of electric motorcycle component development.
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In addition to their drivetrain components, a significant portion of their R&D has also focused on semi-solid-state batteries, which contain a minimal amount of electrolyte compared to traditional lithium-ion batteries found in today’s e-bikes. With a fraction of the electrolyte material, these semi-solid-state batteries developed by T&D are more energy-dense and safer than traditional batteries. The cells can be stabbed through by a nail and won’t ignite – don’t try that with the battery on your current e-bike!
Whereas most e-bike batteries today have an energy density of around 150-250 Wh/kg, these new semi-solid-state batteries push the needle even further into the 250-350 Wh/kg ballpark, depending on the specific packaging.
The cells are also rated for long cycle lifespan, with an expected 1,500 charge cycles before reaching 70% of the original capacity. And with fast-charging support, those same cells can be recharged significantly more quickly.
T&D’s semi-solid-state batteries will roll out on their first production e-bike next month, though the company isn’t at liberty to announce which e-bike maker will land the title of first production electric bike with semi-solid-state batteries. Hopefully we’ll hear that announcement soon.
T&D is also known for its e-moto drivetrains. The company’s new Equator City commuter e-moped project, launched in collaboration with Dimentro, utilizes T&D’s swingarm-mounted motor system.
The drivetrain offers 11 kW of peak power, a 5 kWh high-capacity LFP battery, and supports a range of over 100 km (62 miles).
Other projects featuring T&D’s drivetrains at the booth included interesting examples such as a part go-kart, part tractor project that resembles a heavy-towing ATV.
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