How Much Solar Energy Does California Produce?

How Much Solar Energy Does California Produce
2018 Total System Electric Generation

Fuel Type California In-State Generation (GWh) Percent of California In-State Generation
Geothermal 11,528 5.92%
Small Hydro 4,248 2.18%
Solar 27,265 13.99%
Wind 14,078 7.23%

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Why does California use the most solar energy?

Golden State indeed – This blessing from our very own sun and our position on Earth is the exact case for a state like California. You see, California is blessed with lots of sunlight and most places there usually sport a nice sunny weather, That sort of weather is where the typical models and builds of solar panels can thrive and produce the most electricity.

  • This is only one of the many reasons why California is called the Golden State, well, that is, apart from being home to most Hollywood stars.
  • California is quite figuratively, a gold mine of energy, electricity to be exact and it is good that people and businesses are taking advantage of this quality of the state.

It is also worth noting that California is currently the leading state in the U.S. when it comes to solar industry and solar power. The residents, businesses, and utilities in California somehow work together in harmony to turn the whole state into a solar powerhouse.

  1. Apart from solar power, California is also fond of other clean and green renewable energy sources such as wind or hydroelectric.
  2. There is no doubt, that the state’s contribution to the environmental awareness and rehabilitation of the country is significant, crucial even, because of the current status of renewable energy progress in the U.S.

Of course, one of the main causes of California spearheading the solar industry in the U.S. is because of Photovoltaic solar (PV) panels, These are the type of solar panels which convert sunlight into electricity and therefore thrive in environments with plenty of direct sunshine.

The states inherent and natural climate enables lots of exposure to direct sunlight.This amount of sunlight is perfect for Photovoltaic solar panels.It also results in better electricity yields because of better sunlight.California is also leading the country in terms of renewable energy awareness and usage other than just solar power.California is already contributing a lot to the solar industry and will continue to do so in the foreseeable future.

How much solar does California use?

California’s 100% clean energy milestone – Energy demand statewide reached 18,672 megawatts at 2:45 pm, with 37,172 MW available. (Excess is exported to neighboring states.) 101% of the power provided came from clean energy, according to a continuous tracker provided by California Independent System Operator ( CAISO ), a nonprofit that oversees the operation of the state’s bulk electric power system, transmission lines, and electricity market generated and transmitted by its member utilities.

  • Desert Sun notes that solar dominated the mix: Two thirds of the 18,000 megawatts needed was provided by solar power loaded into the energy grid — or 12,391 megawatts.
  • The rest came from wind, geothermal, and other renewable sources.
  • The milestone lasted almost 15 minutes before edging back down to about 97% renewables.

Environment California state director Laura Deehan said in an emailed statement: California has shown that, for one brief and shining moment, we could do it! Now we need to get our state running on 100% clean energy for the whole day, the whole week, and the whole year.

Where does California rank in the country when it comes to solar power?

Total solar electricity generation by state – Solar power is growing in popularity across the U.S. With the federal solar tax credit and great solar batteries that can keep your home powered when the sun is down, residential solar is more beneficial and attainable than ever.

State Utility-scale solar electricity generation, 2020 (in billion kWh) Small-scale solar photovoltaic electricity generation, 2020 (in billion kWh) Total solar electricity generation
Utah 2.5 0.5 3.0
Colorado 1.5 0.7 2.2
South Carolina 1.8 0.4 2.2
New Mexico 1.7 0.4 2.1
Minnesota 1.8 0.1 1.9
Hawaii 0.5 1.2 1.7
Virginia 1.5 0.2 1.7
Maryland 0.6 1.0 1.6
Oregon 1.1 0.3 1.4
Connecticut 0.2 0.7 0.9
Pennsylvania 0.2 0.6 0.8
Idaho 0.6 0.1 0.7
Indiana 0.4 0.2 0.6
Illinois 0.1 0.5 0.6
Missouri 0.1 0.4 0.5
Rhode Island 0.2 0.3 0.5
Alabama 0.4 0.0 0.4
Arkansas 0.3 0.1 0.4
Mississippi 0.4 0.0 0.4
Ohio 0.2 0.2 0.4
Tennessee 0.3 0.1 0.4
Michigan 0.2 0.2 0.4
Vermont 0.2 0.2 0.4
Louisiana 0.0 0.3 0.3
Washington 0.0 0.3 0.3
Iowa 0.0 0.2 0.2
Kansas 0.1 0.1 0.2
Wisconsin 0.1 0.1 0.2
Wyoming 0.2 0.0 0.2
New Hampshire 0.0 0.2 0.2
Delaware 0.1 0.1 0.2
Kentucky 0.0 0.1 0.1
Maine 0.0 0.1 0.1
Oklahoma 0.1 0.0 0.1
Nebraska 0.1 0.0 0.1
Washington, D.C. 0.0 0.1 0.1
North Dakota 0.0 0.0 0.0
South Dakota 0.0 0.0 0.0
Montana 0.0 0.0 0.0
West Virginia 0.0 0.0 0.0
Alaska 0.0 0.0 0.0

Does CA have too much solar?

California needs somewhere to put all its solar energy – The story comes to us via an excellent report by Lauren Sommer at KQED Science, It’s about a problem that’s beginning to hit in California — and will hit in other places in years to come, as renewable energy spreads. ( KQED ) The dreaded curtailment in California on March 27, 2016. This doesn’t happen all that often yet — roughly 2.2 GWh of renewable energy were curtailed due to oversupply in 2014, relative to the 44,000 GWh of renewable energy the grid used — but the problem is expected to get worse as wind and solar expand in the state.

This illustrates the key challenge that wind and solar (together known as variable renewable energy, or VRE) pose to self-contained grids: their intermittency. A lot of solar comes flooding in at midday, and then it all goes away at night. Sometimes it can go away all at once and come back a few minutes later (a phenomenon known as “clouds”).

Wind can come all at once and then die down all at once. It’s a challenge for today’s grids to handle both the quantities involved at peak VRE production times and the steep “ramps” up or down in supply and demand that come with VRE. ( CAISO ) Fear the duck. There are many ways to tackle the challenges of integrating VRE. I’ve written about the big picture here and more fine-grained, near-term solutions here, But perhaps the easiest way to solve the problem, or at least postpone it, is to make the grid bigger,

The larger the geographical area the grid covers, the more variations in supply and demand can be smoothed out. When one area is at peak VRE production, it can ship power to other areas rather than curtail it. That’s just what the California Independent System Operator (CAISO) wants to do: link up California’s grid with those around it,

“You’re operating your little piece of the system,” CAISO VP Keith Casey told Sommer of KQED, “but if you can operate it as an integrated whole, you can just operate the system more efficiently.” Conceptually, this makes all the sense in the world. When it comes to the details, though, the politics can get sticky.

Does California pay other states to take electricity?

California invested heavily in solar power. Now there’s so much that other states are sometimes paid to take it O n 14 days during March, Arizona utilities got a gift from California: free solar power. Well, actually better than free. California produced so much solar power on those days that it paid Arizona to take excess electricity its residents weren’t using to avoid overloading its own power lines.

It happened on eight days in January and nine in February as well. All told, those transactions helped save Arizona electricity customers millions of dollars this year, though grid operators declined to say exactly how much. And California also has paid other states to take power. The number of days that California dumped its unused solar electricity would have been even higher if the state hadn’t ordered some solar plants to reduce production — even as natural gas power plants, which contribute to greenhouse gas emissions, continued generating electricity.

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Solar and wind power production was curtailed a relatively small amount — about 3% in the first quarter of 2017 — but that’s more than double the same period last year. And the surge in solar power could push the number even higher in the future. Why doesn’t California, a champion of renewable energy, use all the solar power it can generate? The answer, in part, is that the state has achieved dramatic success in increasing renewable energy production in recent years. In Western Kern County, solar panels on almost two square miles of land form the Beacon Solar Project, owned by the Los Angeles Department of Water and Power. (Mel Melcon/Los Angels Times) City officials and builders in Redondo Beach want a mixed-use development to replace the current natural gas facility. They say there is no need to overhaul the power plant when there is an abundance of clean alternatives. (Rick Loomis/Los Angeles Times) No single entity is in charge of energy policy in California.

This has led to a two-track approach that has created an ever-increasing glut of power and is proving costly for electricity users. Rates have risen faster here than in the rest of the U.S., and Californians now pay about 50% more than the national average. Perhaps the most glaring example: The California Legislature has mandated that one-half of the state’s electricity come from renewable sources by 2030; today it’s about one-fourth.

How much do solar panels cost? | California Solar Guide

That goal once was considered wildly optimistic. But solar panels have become much more efficient and less expensive. So solar power is now often the same price or cheaper than most other types of electricity, and production has soared so much that the target now looks laughably easy to achieve. State Senate Leader Kevin de Leon (D-Los Angeles) wants Calilfornia to produce 100% of its electricity from clean energy sources such as solar and wind by 2045. (Luis Sinco/Los Angeles Times) These conflicting energy agendas have frustrated state Senate Leader Kevin de Leon (D-Los Angeles), who opposes more fossil fuel plants.

He has introduced legislation that would require the state to meet its goal of 50% of its electricity from renewable sources five years earlier, by 2025. Even more ambitiously, he recently proposed legislation to require 100% of the state’s power to come from renewable energy sources by 2045. “I want to make sure we don’t have two different pathways,” de Leon said.

Expanding clean energy production and also building natural gas plants, he added, is “a bad investment.” Environmental groups are even more critical. They contend that building more fossil fuel plants at the same time that solar production is being curtailed shows that utilities — with the support of regulators — are putting higher profits ahead of reducing greenhouse gas emissions.

“California and others have just been getting it wrong,” said Leia Guccione, an expert in renewable energy at the Rocky Mountain Institute in Colorado, a clean power advocate. “The way earn revenue is building stuff. When they see a need, they are perversely to come up with a solution like a gas plant.” California and others have just been getting it wrong.

— Leia Guccione, renewable energy expert at the Rocky Mountain Institute Regulators and utility officials dispute this view. They assert that the transition from fossil fuel power to renewable energy is complicated and that overlap is unavoidable. They note that electricity demand fluctuates — it is higher in summer in California, because of air conditioning, and lower in the winter — so some production capacity inevitably will be underused in the winter. In the Mojave Desert at the California/Nevada border, the Ivanpah Solar Electric Generating System uses 347,000 garage-door-sized mirrors to heat water that powers steam generators. This solar thermal plant — one of the clean energy facilities that helps produce 10% of the state’s electricity.

Mark Boster / Los Angeles Times) Eventually, unnecessary redundancy of electricity from renewables and fossil fuel will disappear, regulators, utilities and operators of the electric grid say. “The gas-fired generation overall will show decline,” said Neil Millar, executive director of infrastructure at CAISO, the California Independent System Operator, which runs the electric grid and shares responsibility for preventing blackouts and brownouts.

“Right now, as the new generation is coming online and the older generation hasn’t left yet, there is a bit of overlap.” Utility critics acknowledge these complexities. But they counter that utilities and regulators have been slow to grasp how rapidly technology is transforming the business.

  • A building slowdown is long overdue, they argue.
  • Despite a growing glut of power, however, authorities only recently agreed to put on hold proposals for some of the new natural gas power plants that utilities want to build to reconsider whether they are needed.
  • A key question in the debate is when California will be able to rely on renewable power for most or all of its needs and safely phase out fossil fuel plants, which regulators are studying.

The answer depends in large part on how fast battery storage improves, so it is cheaper and can store power closer to customers for use when the sun isn’t shining. Solar proponents say the technology is advancing rapidly, making reliance on renewables possible far sooner than previously predicted, perhaps two decades or even less from now — which means little need for new power plants with a life span of 30 to 40 years.

  1. Calibrating this correctly is crucial to controlling electricity costs.
  2. It’s not the renewables that’s the problem.
  3. It’s the state’s renewable policy that’s the problem,” said Gary Ackerman, president of the Western Power Trading Forum, an association of independent power producers.
  4. We’re curtailing renewable energy in the summertime months.

In the spring, we have to give people money to take it off our hands.” Not long ago, solar was barely a rounding error for California’s energy producers. In 2010, power plants in the state generated just over 15% of their electricity production from renewable sources.

  • But that was mostly wind and geothermal power, with only a scant 0.5% from solar.
  • Now that overall amount has grown to 27%, with solar power accounting for 10%, or most of the increase.
  • The solar figure doesn’t include the hundreds of thousands of rooftop solar systems that produce an additional 4 percentage points, a share that is ever growing.

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  • Latimesgraphics Source: Energy Information Administration California’s solar boom The share of the state’s power generated by solar utilities and rooftop panels has skyrocketed in recent years.
  • 0 5 10 15% R o o f t op s olar Utili t y s olar ‘ 1 6 ‘ 15 ‘ 1 4 ‘ 13 ‘ 12 ‘ 11 ‘ 10 ‘ 09 ‘ 08 ‘ 0 7 ‘ 06 ‘ 05 ‘ 04 ‘ 0 3 ‘ 0 2 ‘ 0 1 % generated by solar utilities % generated by rooftop panels Note: Rooftop panels were not tracked by the federal government prior to 2014.2016 Solar utilities: 9.6% Rooftop panels: 4.2% Behind the rapid expansion of solar power: its plummeting price, which makes it highly competitive with other electricity sources.

In part that stems from subsidies, but much of the decline comes from the sharp drop in the cost of making solar panels and their increased efficiency in converting sunlight into electricity. The average cost of solar power for residential, commercial and utility-scale projects declined 73% between 2010 and 2016.

Solar electricity now costs 5 to 6 cents per kilowatt-hour — the amount needed to light a 100-watt bulb for 10 hours — to produce, or about the same as electricity produced by a natural gas plant and half the cost of a nuclear facility, according to the U.S. Energy Information Administration. Fly over the Carrizo Plain in California’s Central Valley near San Luis Obispo and you’ll see that what was once barren land is now a sprawling solar farm, with panels covering more than seven square miles — one of the world’s largest clean-energy projects.

When the sun shines over the Topaz Solar Farm, the shimmering panels produce enough electricity to power all of the residential homes in a city the size of Long Beach, population 475,000. A construction crew installs rails to support some of the 9 million solar panels at the Topaz Solar Farm near San Luis Obispo. (Joe Johnston / San Luis Obispo Tribune) The Topaz Solar Farm, one of the world’s largest solar plants, blankets the Carrizo Plain in the Central Valley. It supplies electricity to Pacific Gas & Electric Co. (NASA) Other large-scale solar operations blanket swaths of the Mojave Desert, which has increasingly become a sun-soaking energy hub.

The Beacon solar project covers nearly two square miles and the Ivanpah plant covers about five and a half square miles. The state’s three big shareholder-owned utilities now count themselves among the biggest solar power producers. Southern California Edison produces or buys more than 7% of its electricity from solar generators, Pacific Gas & Electric 13% and San Diego Gas & Electric 22%.

Similarly, fly over any sizable city and you’ll see warehouses, businesses and parking lots with rooftop solar installations, and many homes as well. With a glut of solar power at times, CAISO has two main options to avoid a system overload: order some solar and wind farms to temporarily halt operations or divert the excess power to other states.

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That’s because too much electricity can overload the transmission system and result in power outages, just as too little can. Complicating matters is that even when CAISO requires large-scale solar plants to shut off panels, it can’t control solar rooftop installations that are churning out electricity.

CAISO is being forced to juggle this surplus more and more. In 2015, solar and wind production were curtailed about 15% of the time on average during a 24-hour period. That rose to 21% in 2016 and 31% in the first few months of this year. The surge in solar production accounts for most of this, though heavy rainfall has increased hydroelectric power production in the state this year, adding to the surplus of renewables.

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Krishnakumar / @latimesgraphics Source: Cal-ISO March ’17 82,083 megawatt-hours Pulling the plug California’s clean energy supply is growing so fast that solar and wind producers are increasingly being ordered to halt production. Even when solar production is curtailed, the state can produce more than it uses, because it is difficult to calibrate supply and demand precisely.

  • As more homeowners install rooftop solar, for example, their panels can send more electricity to the grid than anticipated on some days, while the state’s overall power usage might fall below what was expected.
  • This means that CAISO increasingly has excess solar and wind power it can send to Arizona, Nevada and other states.

When those states need more electricity than they are producing, they pay California for the power. But California has excess power on a growing number of days when neighboring states don’t need it, so California has to pay them to take it. CAISO calls that “negative pricing.” Why does California have to pay rather than simply give the power away free? When there isn’t demand for all the power the state is producing, CAISO needs to quickly sell the excess to avoid overloading the electricity grid, which can cause blackouts.

Basic economics kick in. Oversupply causes prices to fall, even below zero. That’s because Arizona has to curtail its own sources of electricity to take California’s power when it doesn’t really need it, which can cost money. So Arizona will use power from California at times like this only if it has an economic incentive — which means being paid.

In the first two months of this year, CAISO paid to send excess power to other states seven times more often than same period in 2014. “Negative pricing” happened in an average of 18% of all sales, versus about 2.5% in the same period in 2014. Most “negative pricing” typically has occurred for relatively short periods at midday, when solar production is highest.

But what happened in March shows how the growing supply of solar power could have a much greater impact in the future. The periods of “negative pricing” lasted longer than in the past — often for six hours at a time, and once for eight hours, according to a CAISO report. The excess power problem will ease somewhat in the summer, when electricity usage is about 50% higher in California than in the winter.

But CAISO concedes that curtailments and “negative pricing” is likely to happen even more often in the future as solar power production continues to grow, unless action is taken to better manage the excess electricity. The sprawling Ivanpah Solar Electric Generating System, owned by NRG Energy and BrightSource Energy, occupies 5.5 square miles in the Mojave Desert. The plant can supply electricity to 180,000 Pacific Gas & Electric and Southern California Edison customers.

Mark Boster/Los Angeles Times) Arizona’s largest utility, Arizona Public Service, is one of the biggest beneficiaries of California’s largesse because it is next door and the power can easily be sent there on transmission lines. On days that Arizona is paid to take California’s excess solar power, Arizona Public Service says it has cut its own solar generation rather than fossil fuel power.

So California’s excess solar isn’t reducing greenhouse gases when that happens. CAISO says it does not calculate how much it has paid others so far this year to take excess electricity. But its recent oversupply report indicated that it frequently paid buyers as much as $25 per megawatt-hour to get them to take excess power, according to the Energy Information Administration.

That’s a good deal for Arizona, which uses what it is paid by California to reduce its own customers’ electricity bills. Utility buyers typically pay an average of $14 to $45 per megawatt-hour for electricity when there isn’t a surplus from high solar power production. With solar power surging so much that it is sometimes curtailed, does California need to spend $6 billion to $8 billion to build or refurbish eight natural gas power plants that have received preliminary approval from regulators, especially as legislative leaders want to accelerate the move away from fossil fuel energy? The answer depends on whom you ask.

Utilities have repeatedly said yes. State regulators have agreed until now, approving almost all proposals for new power plants. But this month, citing the growing electricity surplus, regulators announced plans to put on hold the earlier approvals of four of the eight plants to determine if they really are needed.

  • Big utilities continue to push for all of the plants, maintaining that building natural gas plants doesn’t conflict with expanding solar power.
  • They say both paths are necessary to ensure that California has reliable sources of power — wherever and whenever it is needed.
  • The biggest industrial solar power plants, they note, produce electricity in the desert, in some cases hundreds of miles from population centers where most power is used.

At times of peak demand, transmission lines can get congested, like Los Angeles highways. That’s why CAISO, utilities and regulators argue that new natural gas plants are needed closer to big cities. In addition, they say, the state needs ample electricity sources when the sun isn’t shining and the wind isn’t blowing enough.

Utility critics agree that some redundancy is needed to guarantee reliability, but they contend that the state already has more than enough. California has so much surplus electricity that existing power plants run, on average, at slightly less than one-third of capacity. And some plants are being closed decades earlier than planned.

As for congestion, critics note that the state already is crisscrossed with an extensive network of transmission lines. Building more plants and transmission lines wouldn’t make the power system much more reliable, but would mean higher profits for utilities, critics say. Jaleh Firooz, who worked 24 years as an engineer for San Diego Gas & Electric Co., says utilities seeking higher profits “have the lopsided incentive of building more” power plants and transmission lines. (Robert Gauthier/Los Angeles Times)

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The reason: Once state regulators approve new plants or transmission lines, the cost is now built into the amount that the utility can charge electricity users — no matter how much or how little it is used.Given that technology is rapidly tilting the competitive advantage toward solar power, there are less expensive and cleaner ways to make the transition toward renewable energy, she said.To buttress her argument, Firooz pointed to a battle in recent years over a natural gas plant in Redondo Beach.

Independent power producer AES Southland in 2012 proposed replacing an aging facility there with a new one. The estimated cost: $250 million to $275 million, an amount that customers would pay off with higher electricity bills. CAISO and Southern California Edison, which was going to buy power from the new plant, supported it as necessary to protect against potential power interruptions.

Though solar and wind power production was increasing, they said those sources couldn’t be counted on because their production is variable, not constant. The California Public Utilities Commission approved the project, agreeing that it was needed to meet the long-term electricity needs in the L.A. area.

But the California Coastal Conservancy, a conservation group opposed to the plant, commissioned an analysis by Firooz to determine how vital it was. Her conclusion: not at all. Firooz calculated that the L.A. region already had excess power production capacity — even without the new plant — at least through 2020.

Along with the cushion, her report found, a combination of improved energy efficiency, local solar production, storage and other planning strategies would be more than sufficient to handle the area’s power needs even as the population grew. She questioned utility arguments. “In their assumptions, the amount of capacity they give to the solar is way, way undercut because they have to say, ‘What if it’s cloudy? What if the wind is not blowing?’ ” Firooz explained.

“That’s how the game is played. You build these scenarios so that it basically justifies what you want.” In their assumptions, the amount of capacity they give to the solar is way, way undercut because they have to say, ‘What if it’s cloudy?’ — Jaleh Firooz, power-industry consultant Undeterred, AES Southland pressed forward with its proposal.

  • In 2013, Firooz updated her analysis at the request of the city of Redondo Beach, which was skeptical that a new plant was needed.
  • Her findings remained the same.
  • Nonetheless, the state Public Utilities Commission approved the project in March 2014 on the grounds that it was needed.
  • But the California Energy Commission, another regulatory agency whose approval for new plants is required along with the PUC’s, sided with the critics.

In November 2015 it suspended the project, effectively killing it. Asked about the plant, AES said it followed the appropriate processes in seeking approval. It declined to say whether it still thinks that a new plant is needed. The existing facility is expected to close in 2020.

A March 2017 state report showed why critics are confident that the area will be fine without a new plant: The need for power from Redondo Beach’s existing four natural gas units has been so low, the state found, that the units have operated at less than 5% of their capacity during the last four years.

For more coverage follow Credits: Times data editor Ben Welsh and staff writer Ryan Menezes contributed to this report. Illustrations by Eben McCue. Graphics by Priya Krishnakumar and Thomas Suh Lauder. Produced by Sean Greene : California invested heavily in solar power.

What percentage of California power is solar?

2018 Total System Electric Generation

Fuel Type California In-State Generation (GWh) Percent of California In-State Generation
Geothermal 11,528 5.92%
Small Hydro 4,248 2.18%
Solar 27,265 13.99%
Wind 14,078 7.23%

Does solar make sense in California?

How Much Is It To Go Solar in California? – The average price of solar panels in California is around $16,380 before the federal tax credit or $11,466 after the credit is taken into consideration. This assumes the typical price of $2.73 per watt, which is slightly above the national average of $2.66, and the average system size needed to offset electric consumption, which is 6 kW, well below the national average.

What happens to excess energy from solar panels in California?

PG&E automatically supplies additional energy to you through the electricity grid at night or at other times when your solar system isn’t generating enough to meet your energy needs. When your solar is producing more than you need, excess electricity is returned to the power grid.

Which US state has the most renewable energy?

Sunrun and Vivint Solar The majority of Americans see global climate change as a major threat, right up there with infectious diseases, terrorism and nuclear weapons, according to Pew Research Center. The U.S. has a goal of net-zero carbon emissions by 2050. Still, about two-thirds of adults in the U.S.

Don’t think the federal government is doing enough to protect the environment. Despite a 90% increase in renewable energy usage over the last 20 years, solar and wind — the two fastest-growing renewable sources — only contribute 4.6% of the total energy used in this country. To find out which states are doing the most to combat the climate crisis, the ConsumerAffairs Research Team aggregated the latest available public data to analyze each state’s carbon emissions, waste, recycling, composting and energy generation from renewable and nuclear sources.

Here are some of the key takeaways :

  • Washington is the greenest state, according to our scoring system. It stands out for its significantly higher conventional hydroelectric power generation and overall renewable energy production. It’s followed by Oregon, New Hampshire, Vermont and Maine.
  • West Virginia is the least-green state, with one of the worst scores for renewable energy production and carbon emissions. It’s followed by Louisiana, Wyoming, Hawaii and Indiana.
  • South Dakota, Washington and Vermont have the highest percentage of renewable power generation.
  • Delaware, West Virginia and Kentucky have the lowest percentage of renewable power generation.

Methodology For our rankings, we analyzed data from the Energy Information Administration (EIA) and the Environmental Protection Agency (EPA) to compare each state’s percentage of energy from renewables and emissions. We also examined waste data from a study from Columbia University. Read our full methodology for more information.

What is the largest solar farm in California?

Topaz Solar Farm
Topaz Solar Farm solar panels
Wikimedia | © OpenStreetMap
Country United States
Location Carrizo Plain, San Luis Obispo County, California
Coordinates 35°23′00″N 120°04′00″W  /  35.38333°N 120.06667°W Coordinates : 35°23′00″N 120°04′00″W  /  35.38333°N 120.06667°W
Status Operational
Construction began 2011
Commission date 2014
Construction cost $2.4 billion
Owner(s) Berkshire Hathaway Energy
Solar farm
Type Flat-panel PV
Site area 4,700 acres (1,900 ha)
Power generation
Nameplate capacity 550 MW AC
Capacity factor 26.6% (average 2015–2018)
Annual net output 1,282 GW·h, 272 MW·h/acre
External links
Website Topaz Solar Farm
Commons Related media on Commons

Topaz Solar Farm is a 550 megawatt ( MW AC ) photovoltaic power station in San Luis Obispo County, California, United States, Construction on the project began in November 2011 and ended in November 2014. It is one of the world’s largest solar farms,

The $2.5 billion project includes 9 million CdTe photovoltaic modules based on thin-film technology, manufactured by U.S. company First Solar, The company also built, operates and maintains the project for MidAmerican Renewables, a Berkshire Hathaway company. Pacific Gas and Electric will buy the electricity under a 25-year power purchase agreement,

According to First Solar, it created about 400 construction jobs.

What states have the most solar farms?

1. California – A utility grade photovoltaic solar array in the California Central Valley next to Interstate 5 Steve Proehl | Corbis Documentary | Getty Images Comfortably ahead of its rivals, California remains the undisputed leader when it comes to solar power in the U.S., with almost 23 GW of installed solar.

Which state has the most rooftop solar?

California once again takes first place among states generating electricity from solar power this month. The Golden State produced more than 30.6% of the U.S. total of 21,944 thousand megawatt-hours, according to®’s October Solar Report.