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Category: solar power – Page 67

The RVFL was used in combination with four different techniques: the Jellyfish Search Algorithm (JFSA); the Artificial Ecosystem-based Optimization (AEO); the Manta Ray Foraging Optimization (MRFO) model; and the Sine Cosine Algorithm (SCA). Through the four models, the academics assessed the PV-fed current, the cooling power, the average air chamber temperature, and the coefficient of performance (COP) of a PV-powered STEACS for air conditioning of a 1m3 test chamber under diversified cooling loads varying from 65 to 260W.

The system was built with six solar panels, an air duct system, four batteries, a charge controller, TECs, an inverter, heat sinks, a test chamber, and condenser fans. “The TECs were mainly connected with the air duct arrangement and placed close to each other [and] were placed between the air duct and heat sinks,” the researchers explained. “When direct PV current was fed to TECs arranged on the sheet of the air duct system, one face [became] cold, defined as a cold air duct, and another side [became] hot, called “hot air.” The air ducts were composed of an acrylic enclosure wrapped with a protection sheet.”

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Solar Electric Vehicle (SEV) startup Aptera Motors, recently shared test footage of the beta version of its upcoming SEV. The SEV prototype was seen on a test track alongside the three alpha versions already unveiled by Aptera. The beta version represents Aptera’s last phase before pre-production and deliveries later this year.

Aptera Motors is a mobility startup based in San Diego, California, that specializes in solar electric vehicles (SEVs). Since this is the second iteration of the company intending to bring its flagship SEV to market, it has been a story we at Electrek have been following for quite some time.

After unveiling its new SEV in late 2020 with the same monicker as the company, Aptera Motors has been quite prudent in keeping the public and its growing list of reservation holders in the know about its progress.

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Perovskites are hybrid compounds made from metal halides and organic constituents. They show great potential in a range of applications, e.g. LED lights, lasers, and photodetectors, but their major contribution is in solar cells, where they are poised to overtake the market from their silicon counterparts.

One of the obstacles facing the commercialization of solar is that their power-conversion efficiency and operational stability drop as they scale up, making it a challenge to maintain in a complete solar cell.

The problem is partly with the cell’s electron-transport , which ensures that the electrons produced when the cell absorbs light will transfer efficiently to the device’s electrode. In perovskite solar cells, the electron-transport layer is made with mesoporous titanium dioxide, which shows low electron mobility, and is also susceptible to adverse, photocatalytic events under ultraviolet light.

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Forest Lodge Orchard is New Zealand’s first zero-emissions food producer. Forest Lodge Orchard is located in Central Otago, New Zealand, and is 100% free of fossil fuels. The farmers have electrified everything at the orchard — their irrigation, frost-fighting fans, electric vehicles, tools, and more. Supporting this electrification with a 45 kW solar power array and extendable battery storage system.

In January 2022, Forest Lodge will have its first zero-emission harvest of cherries. The focus is on the climate, and the folks at Forest Lodge believe that New Zealand’s future as a food-producing nation will excel with the ability to grow and produce food in a sustainable and climate-friendly way.

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Keeping up with the first law of robotics: a new photonic effect for accelerated drug discovery. Physicists at the University of Bath and University of Michigan demonstrate a new photonic effect in semiconducting nanohelices. A new photonic effect in semiconducting helical particles with nanos.

California has more rooftops with solar panels than any other state and continues to be a leader in new installations. It is also first in terms of the percentage of the state’s electricity coming from solar, and third for solar power capacity per capita. However, former California governor Arnold Schwarzenegger has expressed concerns that California.

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California has more rooftops with solar panels than any other state and continues to be a leader in new installations. It is also first in terms of the percentage of the state’s electricity coming from solar, and third for solar power capacity per capita. However, former California governor Arnold Schwarzenegger has expressed concerns that California solar — once the model for other US states — is on a precipice. In an opinion piece for the New York Times this week, Schwarzenegger has unpacked a new California Public Utilities Commission proposal which, if approved, would discourage progress being made in the transition to clean energy and grid resilience.

What’s the problem, then? The California Public Utilities Commission is threatening solar progress. But this “hard-earned and vitally important accomplishment” may succumb as the Commission considers a plan that has the potential to make California solar too costly for its citizens.

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The Elektrizitätswerk Zürich (EWZ) sees the construction of solar plants in the high alpine regions of Switzerland as a secure mainstay. The utility is planning another solar plant on the dam wall of a hydroelectric power plant high up in the mountains. The company plans to install more than 1,000 solar modules with an output of 350 kilowatts on the 690-metre-long dam wall of Lago di Lei in Graubünden. The system will cover the dam wall over a length of 550 metres and, once completed, will supply around 380 megawatt hours of electricity each year.

This is already the second installation of this kind to be completed by the EWZ. The first is at the dam of Lake Albigna, also in the canton of Graubünden. This plant has been in operation for a year and has fully met the expectations of the EWZ, so that the forecasts for the new plant are also good. As there, the electricity at Lago di Lei, directly on the border with Italy, will also be fed in via the grid connection of the associated hydroelectric plant of the Hinterrhein power station (KHR). “This makes optimal use of the existing infrastructure to make a further contribution to electricity production from solar energy,” emphasises Guido Conrad, director of the CHR.

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