Browsing the "solar energy" Tag

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Microgrids: how to keep the power on when disaster hits

Bushfires, storms and floods regularly leave thousands of Australian homes and businesses without power. Sydney’s wettest weekend in three decades left more than 130,000 households without power on Sunday. South Australian storms two weeks ago blew over the transmission towers connecting the state to the national energy grid. The Royal Adelaide Hospital was among the buildings […]

July 20th

Renewable Roundup: 25.4%-Efficient solar cells

The first “practical” solar cells came out in 1954 with 6% efficiency. Research cells have now reached 44.5% efficiency, while 23% was the best in commercial products last year. Now we are at 25.4% with a new product about to go into production. It combines two established technologies, offering the best of both. By Mokurai […]

June 25th

Renewable Roundup: 1.5 terawatts of solar energy in 2024

Carl Sagan didn’t say it, but I will: Terawatts and terawatts and terawatts…When I started this series more than a year ago, we had about a TW of hydro and a TW of wind and solar. This has been a difficult year, but we are going to come roaring back from covid-19. By Mokurai Global […]

June 18th

Solar roadways fail despite big investments

When experts first proposed the concept of solar roadways, it seemed like a great idea. With access to so much existing infrastructure, adding solar panels to roads appeared like an easy solution. Photovoltaic roadways garnered interest as an advanced way to harvest energy off of impermeable surfaces. By Emily Folk The solar energy industry has […]

June 15th

Renewable Roundup: Making solar more sustainable (Through recycling and other means)

Sustainability means different things to different stakeholders. It can be mining and recycling of materials, and it can be the quite different question of a sustainable global economy that brings prosperity and other benefits to billions more people. It can be the question of profitability of investments in renewable energy, electric vehicles, sustainable agriculture, carbon-free […]

June 15th

Renewable Roundup: 15 GW of solar energy for Israel

Israel lifted our spirits, by announcing plans to add 15 GW more solar this decade. Mazel tov, Eretz Yisroel! No coal after 2026! Huge amounts of solar! Now, we just have to get a new Israeli government willing to abandon gas. And let the Palestinians join in. And, well, you know. By Mokurai Israel wants another 15 […]

June 9th

Trump’s wall: Renewable energy powerhouse or eco-disaster?

West Texas and southern New Mexico, known locally as “The Borderland,” has a lot of potential. With abundant and powerful sunshine, wind, and some hydroelectric resources, there’s the potential to become a renewable energy powerhouse. Sadly, there’s also great potential for the politics of isolationism to turn the borderland into a corridor of environmental destruction […]

March 31st

Until LADWP has a landlord-friendly solar incentive program, LA will be plagued with blackouts

OK, so it’s not fair the Los Angeles Department of Power and Water should shoulder all the blame for this month’s power outages. Its crews worked night and day to restore power to Angelenos suffocating in last weekend’s epic heatstorm. LADWP’s power outages affected nearly 3% of its customers last weekend. They’re calling it an “unprecedented” heat storm, and as […]

July 18th

Solar energy sets a new record low in the US — 2.155 cents/kWh!

We have seen solar power in the Middle East come into the low 2 cents per kilowatt-hour (kWh) range. We have seen it under 2 cents per kWh in Mexico. Misguided, casual observers claimed these prices only occurred due to heavily exploited labor, but now we have also seen 2.155 cents per kWh in the United States (h/t RenewEconomy). By Kurt Lowder […]

June 21st