View US maps of average daily solar resources and solar-based electricity generation

Explore global solar resources with this interactive map

One of the biggest challenges to deploying solar panels is whether electricity can be generated reliably when needed, day after day. This detailed interactive map calculates the solar power output potential of regions worldwide and provides a visual comparison between locations such as North Africa and the US Midwest.

View hourly electricity demand and generation across the continental US

This dashboard maps data from the high-voltage bulk electric power grid based on information from regional electricity balancing authorities. Users can also chart data for up to the past 31 days to observe how forecasted demand compares with actual demand and generation.

View US solar energy industry trends and trajectories, tracked by SEIA

The Solar Energy Industries Association provides charts summarizing the state of solar energy in the US, including cumulative solar installations, solar jobs, photovoltaic pricing and deployment, and inflation and supply chain constraints within the market.

Find out how much energy in the US comes from renewable sources and other FAQs

Browse frequently asked questions about renewables, from the amount of energy production by state to the cost of electricity generation by power source.

Enough sunlight hits Earth in just 90 minutes to power the planet for an entire year

Despite this, in 2023, only 5.1% of electricity in the US came from solar energy. Solar panel technology has nonetheless made significant advancements since the 19th century, largely due to NASA's efforts in the space race.

Larger shares of solar power generation produce larger energy demand curves

Because solar energy is only available during daylight hours, transitioning an electric grid to solar requires significant ramp-ups and ramp-downs of other energy sources during mornings and evenings to compensate. Widespread adoption of affordable energy storage solutions can soften these curves.

Visualize energy sources and uses across the US

Want to understand the basics of America’s current energy situation? The National Academies, advisers to the nation on science, engineering, and medicine, provides objective information about the United States’ current energy sources and uses, as well as a look forward to the future of energy.

View breakdowns of the world's and each nation's electricity comes from

These charts show how the shares of generated electricity sources—solar, wind, hydro, nuclear, bioenergy, oil, gas, and coal—have changed since 1985. Since 2010, an increase in renewable sources has offset the share lost by nuclear and fossil fuels.

View an interactive chart of energy conversion efficiencies for various photovoltaics

This National Renewable Energy Laboratory visualization provides maximum confirmed efficiencies for nearly 30 research PV cell technologies from August 1975 to today. Concentrator multi-junction cells have led the field since 1993. (Desktop recommended site.)

Visualize your city’s annual daylight map

Type in your town or region and see sunrise and sunset for each day of the year. A separate view shows the number of hours of day versus night for each day. Search a city far north like Oslo, Norway, and compare its graphs to one near the equator (like Singapore).

See where the 94 nuclear reactors in the continental US are located

In 2023, these reactors—located in 53 plants across 28 states—prevented 437 million tons of carbon dioxide emissions. A single fingertip-sized uranium pellet generates as much electricity as a ton of coal, enough for one household's annual electricity.

Solar power is converting the sun's energy into thermal or electrical energy

Solar energy is the most abundant renewable energy resource. It can be captured in photovoltaic cells to generate electricity, solar heating and cooling technologies for temperature control, and concentrated solar power to drive steam turbines.

Rare chance for US states to see Northern Lights

A solar storm in July 2023 offered people in 17 American states, as well as Canada, an unusual chance to witness the Northern Lights, or aurora borealis. The 11-year solar cycle, reaching its peak in 2024, made the lights visible in places further south than usual. Read up on the announcement from the Geophysical Institute at the University of Alaska at Fairbanks here.

View a distribution of wind turbine locations across the US

As of May 2025, the US Wind Turbine Database maps and provides technical specifications for 76,051 onshore and offshore turbines from 1,794 projects, ranging from small installations to large-scale wind farms.

Explore a gallery of Bill Nye's energy-efficient home

The Southern California home is painted pale yellow and features double-pane, low-emissivity glass windows to help keep temperatures low. Solar panels are used for electricity and hot water, while Solatube domes and ducts illuminate rooms from above throughout the day, even when the sun is low in the sky.

View a colorful gallery of solar features curated by the National Solar Observatory

Many of the images are captured at different nonvisible wavelengths, such as UV, and then colorized into the visible range to illuminate the sun's magnetic field and magnetism-driven solar activity, including coronal loops and filamentary prominences. Close-up imaging also reveals solar granules—Texas-sized cells of material that bubble to the surface from the convection zone.

As of 2026, the majority of US states have unsafe radon exposure levels

Alaska, South Dakota, Pennsylvania, Ohio, and Washington top the list of states with exposure levels above 4 picocuries per liter for this naturally occurring radioactive gas. While these state-level averages vary from one county, municipality, and home to another, the EPA encourages those in the highest-risk states to test their homes.

Snowfall records from every county in the US

Discover the one-day snowfall records of every county in the US in this comprehensive map. Data from the National Oceanic and Atmospheric Administration captures inches of snowfall and the year it fell the most in each county. See the contrasts between the inches of snowfall in warm southern American states and the cooler East Coast.

Visualizing California's wine production

While Europe has France, Italy, and Spain, the US has California. The bulk of US wine production takes place in the Golden State, accounting for roughly two-thirds of the United States’ nearly 800 million gallons produced each year. This chart compares California and United States wine production from 1995 through 2022. Production in both has been trending down for several years, partially due to extreme weather events.

It takes an average of 14 days of work to afford a monthly mortgage in the US

This map of the US shows the number of eight-hour workdays it would take to afford a monthly mortgage payment in each state. Specifically, the calculations are based on median hourly wages in each state, as well as a 30-year mortgage, 5.8% mortgage rate, and a 6% down payment.

Winter-risk SAD is more likely in regions above 40 degrees latitude north

Using latitude, depression prevalence, and populations of women and those aged 18-30, this map shows the risk of experiencing seasonal affective disorder during the winter. Researchers weighted latitude most (50%) and demographics least (5% each for women and young adults). Overall risk is not a useful predictor of prognosis for an individual.

Map of each state's largest tax revenue source

While America’s federal government primarily raises revenue through personal and corporate income taxes, it's a different story for each of the 50 states. This map shows how every state raises tax revenue for government activities. New York and California, for instance, raise most of that money through personal income taxes, whereas Texas and Florida have sales tax as their largest sources of tax revenue. Click here to see the map.

The UV index measures the sun's ultraviolet radiation risk on a scale of 1 to 11+

The tool takes into account geographical location, time, elevation, and cloud coverage to help individuals plan their daily activities around the sun's peak UV exposure times, which occur from 10:00 am to 4:00 pm. A value at or above 6 requires sunscreen (SPF 15+), shelter, or UPF clothing

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

Determine your carbon footprint with this web tool

This tool from the Environmental Protection Agency calculates a user's carbon footprint based on their zip code, household size, and emission factors involving home energy, transportation, and water production.

Some renewable energy sources may weaken the resiliency of electric grids by removing outage buffers provided by coal- and natural gas-fired plants, which provide the system with more time to find a new power source if a plant goes down.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

The illegal happy hour map

Despite its origins as a US phenomenon, happy hours aren't welcome everywhere in the country. This resource includes a map that visualizes every American state's happy hour legislation, from the states with complete bans (like Massachusetts) to states that don't have any happy hour legislation at all.

44% of Americans say they pray at least once a day—discover how your state's religiosity stacks up against the rest of the country.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.

See the 25 of the best photos of auroras from around the world.

Louisiana's 'Cancer Alley' is infamous for having some of the highest industrial pollution, toxic air emissions, and cancer risks in the US.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

View the ten deadliest tornadoes in US history.

Scientists can determine Earth's past climate conditions by analyzing air trapped in microscopic bubbles within ice cores—columns of compressed snow layers that build up over hundreds of thousands of years.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

While the sun's gravity keeps the planets in orbit, their gravity also pulls on the sun, causing it and everything else in the solar system to orbit around a mutual balance point called the barycenter—the true center of the solar system.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

Experimental hantavirus vaccines and therapies, still under development, have long been funded by the US military.

See photos of Meteora, a mountainous site in central Greece, home to 14th-century monasteries perched atop soaring outcroppings.

This poison ivy knowledge quiz—accompanied by photos of the plant's varied forms—may help you identify this common rash-inducing growth.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.