Lifeboat Foundation

The project that resulted has helped slash the district’s annual energy consumption by 1.6 million kilowatts and in three years generated enough savings to transform the district’s $250,000 budget deficit into a $1.8 million surplus.

Just as Hester envisioned at the outset, a major chunk of the money is going toward teachers’ salaries — fueling pay raises that average between $2,000 and $3,000 per educator per month.

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Continue reading “This Arkansas school turned solar savings into better teacher pay” »

The new system is described today in a paper in the journal Science Advances, by MIT graduate student Arny Leroy, professor of mechanical engineering and department head Evelyn Wang, and seven others at MIT and at the Pontifical Catholic University of Chile.

Such a system could be used, for example, as a way to keep vegetables and fruit from spoiling, potentially doubling the time the produce could remain fresh, in remote places where reliable power for refrigeration is not available, Leroy explains.

2022 story:

Continue reading “System provides cooling with no electricity” »

A record-breaking gamma-ray burst detected in October 2022 has now been described as a one-in-a-thousand years event.

It’s called GRB 221009A, and with up to 18 teraelectronvolts of energy packed in its emissions of light, it’s considered the most powerful gamma-ray burst on record.

We’ve been waiting to learn more about this incredible explosion, and now the analyses have started to arrive on preprint server arXiv, with a trio of papers submitted to The Astrophysical Journal Letters.

With most EV chargers, which are AC-to-DC, there is lost energy and a longer charging time. But with DC to DC, according to Enteligent, the DC-to-DC charging results in up to 25% energy savings because the power does not have to be converted.

From pv magazine USA

Enteligent unveiled its DC-to-DC-solar hybrid bi-directional EV charger this week at Intersolar North America. Powered by the sun, the EV charger can supply 25 kW of fast DC charging, charging three times faster than AC Level 2 EV chargers, the company reports.

Continue reading “US startup introduces DC-to-DC solar EV charger” »

RMIT

The 2021 IPCC report, however, urged scientists and engineers to double down on renewable energy efforts and consider all options.

Electric buses could help solve the problem. Today Bhattacharya is the CEO and co-founder of BasiGo, a mobility startup racing to electrify the city’s buses. The company is not alone. Swedish-Kenyan electric vehicle manufacturer Roam also has its eyes set on Nairobi’s mass transport sector. Both are rolling out fleets of buses this year that could mark the start of a new chapter for city’s famous matatu culture.

During the early days of the coronavirus pandemic in Nairobi, Kenya, something improbable happened: a mountain appeared. To curb the transmission of the virus, authorities called on the city’s thousands of private bus operators to cease trading. “Within three days, the air completely cleared,” recalls entrepreneur Jit Bhattacharya. “You could see Mount Kenya … crystal clear,” some 90 miles away.

Bhattacharya also saw an opportunity. Kenya produces 90% of its electricity from renewable sources – mostly geothermal and hydropower – and has surplus grid capacity, yet it imports nearly all its petroleum fuels. What if clean energy could be channeled into the transport sector? Maybe it could help the city clean up its act. Maybe Mount Kenya could become a permanent feature for Nairobi once more.

Continue reading “Electric buses are driving a silent revolution in Nairobi” »

Researchers have come up with a new way to use 3D printing to make a new superalloy.

A group of researchers has developed a new superalloy resistant to high temperatures. This could if ever brought into production, prove revolutionary for the future of turbines.

Continue reading “Researchers may have just future-proofed turbines in the aerospace and energy industry” »

Exxon’s green energy stories on the website are gaslighting, REM Tec creates agrivoltaics for farms and Canada builds a mass storage site.

Leading theories suggest that the first energy used by life was either from the sun or from geothermal heat and chemistry at the bottom of the ocean.