Progress on solar power generation in India is a big deal. The country’s reduction in poverty, remarkable as it has been, is counterbalanced by its environmental impoverishment. Thanks to Reuters for this article by Sarita Chaganti Singh and Sudarshan Varadhan:
NEW DELHI/SINGAPORE, May 4 (Reuters) – India plans to stop building new coal-fired power plants, apart from those already in the pipeline, by removing a key clause from the final draft of its National Electricity Policy (NEP), in a major boost to fight climate change, sources said. Continue reading →
Pavagada Ultra Mega Solar Park, a clean-power plant the size of Manhattan, could be a model for the world—or a cautionary tale.
Ashok Narayanappa drives a bullock cart carrying hay, along a stretch of road lined with pylons, in Pavagada Solar Park.
Every morning in the Tumakuru District of Karnataka, a state in southern India, the sun tips over the horizon and lights up the green-and-brown hills of the Eastern Ghats. Its rays fall across the grasslands that surround them and the occasional sleepy village; the sky changes color from sherbet-orange to powdery blue. Eventually, the sunlight reaches a sea of glass and silicon known as Pavagada Ultra Mega Solar Park. Here, within millions of photovoltaic panels, lined up in rows and columns like an army at attention, electrons vibrate with energy. The panels cover thirteen thousand acres, or about twenty square miles—only slightly smaller than the area of Manhattan. Continue reading →
They’re more likely to listen to people they trust.
Rooftop solar panels can save people money on their electricity bills. And those savings can mean a lot — especially for people with low incomes, who might have to choose between paying for utilities or buying food or medicine…
In its quest for green energy, Europe is looking to North Africa, where vast solar and wind farms are proliferating and plans call for submarine cables that will carry electricity as far as Britain. But this rush for clean power is raising serious environmental concerns.
Solar panels in sun-rich North Africa generate up to three times more energy than in Europe. And North Africa has a lot more room for them than densely populated Europe. Continue reading →
A community turns on itself over the aptly named Mammoth solar project, a planned $1.5bn power field nearly the size of Manhattan
When proposals for the largest solar plant ever conceived for US soil started to gather pace – a plan that involves spearing several million solar panels into the flat farmland of northern Indiana – something in Connie Ehrlich seems to have snapped. Continue reading →
Late last month, analysts at the investment bank Credit Suisse published a research note about America’s new climate law that went nearly unnoticed. The Inflation Reduction Act, the bank argued, is even more important than has been recognized so far: The IRA will “will have a profound effect across industries in the next decade and beyond” and could ultimately shape the direction of the American economy, the bank said. Continue reading →
Solar farm in Wroughton, England. Planning permission for 23 solar farms has been refused across England, Wales and Scotland between January 2021 and July 2022. Photograph: Chris Gorman/Getty Images
Nature gets disrupted even by the most sensitively planned green solutions. Here is a parallel story to yesterday’s, with solar replacing wind and England replacing Western USA, illustrating the challenges facing renewable energy:
Back in the 19th century, coal was the nation’s newfangled fuel source—and it faced the same resistance as wind and solar today
Steven Preister’s house in Washington, D.C. is a piece of American history, a gorgeous 110-year-old colonial with wooden columns and a front porch, perfect for relaxing in the summer. Continue reading →
With the push for renewables leading to land-use conflicts, building highly efficient utility-scale solar farms on ever-smaller tracts of land has become a top priority. New approaches range from installing PV arrays that take up less space to growing crops between rows of panels.
Farmers grow hay between solar fences in Donaueschingen, Germany. NEXT2SUN
From the ground, the new solar farm shimmers like a mirage oasis on a hot summer day. Instead of row after slanting row of shiny panels stretching taller than corn, this array, mounted directly on the earth, lies flat as water. Continue reading →
Companies like BlueWave are betting on it. But the technology has its critics.
Mr. Knowlton preparing the soil between the panels before he plants butternut squash and lettuce. Tony Cenicola/The New York Times
In its 150-year history, Paul Knowlton’s farm in Grafton, Mass., has produced vegetables, dairy products and, most recently, hay. The evolution of the farm’s use turned on changing markets and a variable climate. Recently, however, Mr. Knowlton added a new type of cash crop: solar power. Continue reading →
Solar farms are proliferating on undeveloped land, often harming ecosystems. But placing solar canopies on large parking lots offers a host of advantages — making use of land that is already cleared, producing electricity close to those who need it, and even shading cars.
A solar parking facility at Rutgers University in Piscataway, New Jersey, with an output of 8 megawatts of electricity.
Fly into Orlando, Florida, and you may notice a 22-acre solar power array in the shape of Mickey Mouse’s head in a field just west of Disney World. Nearby, Disney also has a 270-acre solar farm of conventional design on former orchard and forest land. Park your car in any of Disney’s 32,000 parking spaces, on the other hand, and you won’t see a canopy overhead generating solar power (or providing shade) — not even if you snag one of the preferred spaces for which visitors pay up to $50 a day. Continue reading →
When Byron Kominek returned home after the Peace Corps and later working as a diplomat in Africa, his family’s 24-acre farm near Boulder, Colo., was struggling to turn a profit.
“Our farm has mainly been hay producing for fifty years,” Kominek said, on a recent chilly morning, the sun illuminating a dusting of snow on the foothills to his West. “This is a big change on one of our three pastures.”
That big change is certainly an eye opener: 3,200 solar panels mounted on posts eight feet high above what used to be an alfalfa field on this patch of rolling farmland at the doorstep of the Rocky Mountains. Continue reading →
In its latest climate plan, Sri Lanka is ruling out new coal power and aiming to reach 70 percent clean electricity by 2030, an important milestone on its way to reaching its goal of a carbon-neutral electricity generation system by 2050, Climate Home News reported. Continue reading →
International Energy Agency expects green electricity to end coal’s 50-year reign by 2025
Global renewable electricity installation will hit a record level in 2020, according to the International Energy Agency, in sharp contrast with the declines caused by the coronavirus pandemic in the fossil fuel sectors. Continue reading →
Green hydrogen, which uses renewable energy to produce hydrogen from water, is taking off around the globe. Its boosters say the fuel could play an important role in decarbonizing hard-to-electrify sectors of the economy, such as long-haul trucking, aviation, and heavy manufacturing.
Green hydrogen is produced using renewable energy, making it a CO2-free source of fuel. SGN
Saudi Arabia is constructing a futuristic city in the desert on the Red Sea called Neom. The $500 billion city — complete with flying taxis and robotic domestic help — is being built from scratch and will be home to a million people. And what energy product will be used both to power this city and sell to the world? Not oil. The Saudis are going big on something called green hydrogen — a carbon-free fuel made from water by using renewably produced electricity to split hydrogen molecules from oxygen molecules. Continue reading →
1. Collected heat can also be transferred into gas and shot down ducts into manufacturing plants. 2. The 3.5-square-foot receiver takes in 400 kW of light, 1,200 times denser than direct sunlight. 3. Each heliostat gets realigned every few seconds so maximum light hits the receiver all day. PHOTOGRAPH: CINEATRA MEDIA
After nearly nine years of monitoring the mainstream and more scientific news for evidence that harnessing the sun is one of our highest potential solutions to climate change, and considering all the noise that comes from climate change skeptics and deniers, it is easy to lose track of whether solar has what it takes. Laura Mallonee shares this brief in Wired:
Software-driven systems can produce enough searing heat to power manufacturing processes that now gorge on fossil fuels.
Plenty of days, temperatures in California’s Mojave Desert climb above 120 degrees Fahrenheit. A measly figure. These 400 silvered glass panels, tucked into the western edge of that hot, hot desert, are there to generate heat 15 times that amount. And, ideally, to help cool the planet too. Continue reading →
Crops grow under solar panels at the Biosphere 2 Agrivoltaics Learning Lab operated by the University of Arizona, north of Tucson. Patrick Murphy/University of Arizona
When we think of farming, we know sunlight is important, but too much sun is not normally a good thing. For solar, no such thing as too much sunlight–the more the better. But counterintuitive though it may be, here is a story about overlapping advantages of sunlight for farming and solar energy production:
And the same land can produce loads of food and electricity simultaneously.
Even after a boom in recent years, solar energy delivers less than 2 percent of power generation to the US electrical grid. But if we’re going to avoid the worst impacts of climate change, the sun’s contribution is going to have to ramp up dramatically. Where to put all the solar panels? You might envision vast solar farms stretching across the sun-scorched barren lands of the Southwest. But according to two recent papers—one from Oregon and Utah researchers, another from a team centered at the University of Arizona—a much different kind of landscape makes the most sense for harvesting solar power: the land currently occupied by food farms.
That’s because the technology that drives solar power—photovoltaic (PV) panels made of silicon that convert light photons directly into electricity—works most efficiently under a specific set of conditions. Most important for this power, of course, is abundant sunlight, which is why deserts make tempting sites for solar energy production. But air temperature is important, too. Above the threshold of 78°F, the hotter it gets outside, the less efficient PV panels are at converting sunlight to electricity. And that’s why blazing-hot deserts pose some problems for solar panels. Continue reading →
When we think of Holland, we think of its engineering contributions to the world’s lower elevation places that have water management issues. Such as Kerala historically, and soon to be many more places due to climate change-related water levels rising. Here is a novel twist on using their expertise with water, for which we give thanks to the Guardian:
The islands will contain 73,500 panels. Photograph: Floating Solar
The 15 floating solar islands will possess sunflower-like ability to turn to face the sun
Dutch engineers are building what will be the world’s largest archipelago of islands made up of sun-tracking solar panels.
Growing resistance to the construction of wind turbines or fields of solar panels on land has led the renewable energy industry to look for alternative options. Large islands of solar panels are under construction or already in place in reservoirs and lakes across the Netherlands, China, the UK and Japan. Continue reading →
Millions of Americans lack access to solar energy because they cannot afford the steep upfront costs. Now, more than a dozen states are adopting “community solar” programs that are bringing solar power and lower energy bills to low-income households from New York to California.
Workers receive job training while building a shared solar farm in Platteville, Colorado. COURTESY OF GRID ALTERNATIVES
Isbel “Izzy” Palans lives in a small cabin nestled among mountain peaks and towering trees in the Colorado Rockies. Her home is often shaded and, during the long winters, buried under heaps of snow. Her monthly utility bills show credits for solar electricity production, but no solar panels are affixed to her roof. Instead, the power comes from a solar array some 60 miles away in a nearby valley.
Last year, the panels nearly slashed her energy bill in half. “I’ve been thrilled,” said Palans, a 76-year-old retired waitress who relies partly on Social Security benefits to make ends meet.
Solar contractor Brad Boston (center) and utility representatives meet with engineer Pranay Kohli to discuss a community solar project at DuPont Park Seventh Day Adventist Church in Washington, D.C. COURTESY OF GROUNDSWELL
Palans is a subscriber to a 145-kilowatt solar array project run by Holy Cross Energy, a rural utility cooperative. Built with state funding, the program provides solar credits to more than 40 low-income households in western Colorado that otherwise wouldn’t have the financial or technical means to access renewable energy. The venture is just one of a growing number of so-called “community solar” projects across the United States focused on delivering renewable energy — and the cost-savings it can provide — to low-income households, from California to Minnesota to Massachusetts. Continue reading →