Tag Archive for: solarenergy

Scientists at Caltech say they've successfully transmitted solar energy gathered by a satellite in orbit down to the Earth's surface.

Satellite beams solar power down to earth using microwave transmitter

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In a remarkable first, scientists at the California Institute of Technology say they’ve successfully transmitted solar energy gathered by a satellite in orbit down to the Earth’s surface, as well as to nearby receivers in space.

Dubbed the Microwave Array for Power-transfer Low-orbit Experiment (MAPLE), the experiment was launched back in January as part of an exciting triptych of tests from Caltech’s Space Solar Power Project (SSPP).

“Through the experiments we have run so far, we received confirmation that MAPLE can transmit power successfully to receivers in space,” SSPP co-director Ali Hajmiri said in a press release. “We have also been able to program the array to direct its energy toward Earth, which we detected here at Caltech.”

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Source: yahoo! news

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Lebanon's situation has shown the power of solar and how it can provide a source of clean & reliable electricity when other electricity systems break down.

How solar power is keeping Lebanon’s lights on

Sonia Constantin’s fridge and water boiler are plugged in. Sitting on her sofa with her sister, she appreciates the rediscovered comfort of her home in Beirut, Lebanon’s capital – now fully supplied with electricity.

A Lebanese professor of educational sciences, Constantin decided to invest $6,500 (£5,140) of her savings in nine solar panels and a battery last September. “We are not looking for a life of luxury, we simply want dignity,” she tells me.

The investment allowed her to unsubscribe from the privately owned diesel-powered generators which supply power to most households in Beirut. “I have since resumed a normal life: I can charge my phone whenever I want.”

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Source: BBC

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The list represents the cities embracing solar energy, with the most net-new solar panel installations in the past year.

Thumbtack reveals ranking of the most solar cities in the US ahead of Earth Day

More Americans than ever are looking to take on projects to help minimize their home’s carbon footprint, with 36 percent planning to install solar panels this year.* Today, Thumbtack, the app helping millions of homeowners to care for their homes, revealed the list of the ‘Most Solar Cities in the U.S.’ based on data from millions of home projects booked from across all 50 states** specifically for new solar panel installations.

The most solar cities in the U.S. based on Thumbtack’s findings are:

  1. San Diego, California
  2. Los Angeles, California
  3. Austin, Texas
  4. Palm Springs, California
  5. San Francisco, California
  6. Las Vegas, Nevada
  7. Phoenix, Arizona
  8. Orlando, Florida
  9. San Antonio, Texas
  10. Tampa, Florida
  11. Dallas-Ft. Worth, Texas
  12. Denver, Colorado
  13. Salt Lake City, Utah
  14. Washington, D.C.
  15. Sacramento, California

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Source: Business Wire

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EDF Renewables North America inked a 20-year PPA with SCPPA for the energy and renewable attributes related to the 117 MWac Sapphire Solar project

Southern California Public Power Authority (SCPPA) signs 20 year solar PPA

EDF Renewables North America inked a 20-year Power Purchase Agreement (PPA) with Southern California Public Power Authority (SCPPA) for the energy and renewable attributes related to the 117 MWac (148 MWdc) Sapphire Solar project.

Sapphire Solar is guaranteed to begin delivery of carbon-free electricity to SCPPA’s participating members, Anaheim, Pasadena and Vernon, by Dec. 31, 2026. In addition to the solar production, SCPPA reserves the option to a 59 MWac x 4-hour (236 MWh) battery energy storage system (BESS).

Sapphire Solar, located in Riverside County on private land, expects to create approximately 250 jobs during the construction phase with more than $253 million generated in new tax revenue over the operating life for taxing entities.

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Source: Solar Builder

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Mission Hills followed the Disciples of Christ Church's decision to reduce its carbon pollution and become carbon neutral by 2030.

California churches meet their sustainability goals through solar energy & energy efficiency

In California, two Disciples of Christ churches had the same idea to improve their energy efficiency and reduce their fossil fuel use. Mission Hills Christian Church in San Fernando, outside of Los Angeles, installed rooftop solar panels to reduce its carbon emissions and act at the intersection of environmental care and justice work. Niles Discovery Church in Fremont, near San Jose, installed a solar array to reduce its dependence on fossil fuels and lower its energy costs. Both churches are certified Green Chalice churches, which means that they completed a nationwide program to lower their carbon footprints by installing solar panels, creating community gardens, and recycling. Both also have volunteer teams who have helped make the two churches more sustainable through energy and water efficiency actions, allowing them to do more good in their communities.

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Source: EESI

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SEIA found that the National Football League (NFL) leads in solar-powered stadiums, with 32% of stadiums powered by solar.

These sports stadiums are leading the charge in solar energy

Solar Energy Industries Association has released a study on solar energy adoption by sports centers around the U.S., and winners have been announced just ahead of Super Bowl Sunday. In fact, both teams playing in the big game, Kansas City and Philadelphia, are top solar adopters at their home stadiums, according to SEIA, although host site State Farm Stadium in Arizona does not have solar.

Overall, more than 40 professional teams have incorporated solar energy into their stadiums and training facilities, or purchased solar power via off-site or community solar programs. Last year, more than 40.6 million fans attended events at solar-powered stadiums.

SEIA found that the National Football League (NFL) leads in solar-powered stadiums, with 32% of stadiums powered by solar. Major League Baseball (MLB) and the National Basketball Association (NBA) are close behind with both at 30% of arenas and stadiums with solar, SEIA shared.

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Source: Eco Watch

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The Port of Oakland’s stake in a newly expanded solar array at Antelope Valley Solar Ranch has just come online.

Port of Oakland’s solar energy use grows

The Port of Oakland’s stake in a newly expanded solar array at Antelope Valley Solar Ranch has just come online. This solar project is now delivering renewable energy to the Port of Oakland. The Port owns and operates its own utility which then sells electricity to tenants including those at Oakland International Airport and the Oakland Seaport. The Port agreed to purchase approximately 11,000 megawatt hours of electricity annually from this solar farm in Lancaster, California.

“This is a project that has been six years in the making,” said Port of Oakland Executive Director Danny Wan. “Using renewable power sources to meet our energy needs is another important step towards zero-emissions and a greener port.”

Thirty percent of the Port’s power comes from solar.

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Source: AJOT

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The scientists claim that, for an average annual generation for solar of 1,370 kWh/kW, 38 million hectares would be needed.

Solar may cover the world’s electricity demand with 0.3% of its land area

Solar energy could theoretically cover the world’s electricity demand by just 0.3% of its land area. This is one of the main conclusions of new research by a group of academic institutions, led by Aarhus University in Denmark. The researchers claim that raw materials and land availability will not present real barriers to PV in its race to dominate the global energy landscape.

The scientists claim that, for an average annual generation for solar of 1,370 kWh/kW, 38 million hectares would be needed. They noted that the world has a total area of 13,003 million hectares.

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Source: PV Magazine

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Winston Cone Optics seeks to develop pilot projects that use solar energy to heat water, evaporate waste and remove salt from wastewater.

Solar projects yielding exciting potential for dairies, other industries

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A company started by UC Merced founding faculty member Roland Winston – and staffed by alumni – is looking for partners for some exciting solar projects. And the government could cover the costs.

Winston Cone Optics seeks to develop pilot projects that use solar energy to heat water, evaporate waste and remove salt from wastewater.

“Solar energy isn’t a new concept, but what makes our solar thermal collectors unique is the use of nonimaging optics to concentrate sunlight year-round from a stationary position,” said Winston. “The result is less maintenance, fewer components, and better efficiency and reliability.”

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Source: UCMERCED

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The data showed that almost 23% of the US’ electricity was generated by renewable energy sources in the period January-October 2022.

Solar accounted for over 5% of US electricity generation in first 10 months of 2022

Solar energy accounted for over 5% of the total electricity generation in the US in the first 10 months of 2022 as solar output increased 26.23% year-to-date (YTD), according to data released by the US Energy Information Administration.

The data was reviewed in a report by non-profit research organisation the Sun Day Campaign, and showed that almost 23% of the US’ electricity was generated by renewable energy sources in the period January-October 2022. Total renewable electricity generation grew 14.3% in the last 12 months, whilst the total net generation increased by 3.14%.

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Source: PV Tech

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