What Is Osmotic Power and How Does It Work? Osmotic power (or salinity gradient energy) is electricity generated from the natural process of osmosis – the movement of water across a membrane from a dilute solution to a salty solution theguardian.com. At river deltas where freshwater meets the ocean, immense chemical energy is continuously released…
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Alkaline electrolyzers use a liquid potassium hydroxide (KOH) electrolyte, operate at about 60–80 °C, and have decades of industrial use in chlor-alkali and fertilizer plants. PEM electrolyzers use a solid polymer membrane and typically operate at 50–80 °C, delivering very high-purity hydrogen (>99.999%), with iridium catalysts at the anode and platinum at the cathode. SOEC…
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As of mid-2025, commercial N-type TOPCon cells reach about 23–24% efficiency, with best mass-produced TOPCon modules at 23.8% and JinkoSolar reporting 26.4% cell efficiency in tests. Heterojunction (HJT) solar cells regularly reach 25%+ efficiency in production, with Longi reporting a 27.3% lab cell efficiency. Perovskite–silicon tandem cells have surpassed 33% efficiency in labs (Longi 33.9%,…
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Thermoradiative energy generation, nicknamed night-time solar, produces electricity by emitting infrared radiation to the cold night sky when the device is warmer than its surroundings. Unlike conventional solar cells that absorb sunlight, thermoradiative devices emit photons to space, effectively running as a solar cell in reverse and using the Earth–space temperature difference at night. In…
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The United Nations’ International Court of Justice on July 23 issued an advisory opinion declaring climate change an urgent and existential threat and urged states to cooperate to achieve concrete emission reduction targets, warning of potential compensation claims for wealthy polluters under international law. On July 23, the Trump administration moved to dismantle the EPA’s…
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Perovskite-silicon tandem solar cells achieved about 29% efficiency on commercial-size cells, exceeding traditional silicon panels. Bifacial solar panels boost energy yields by up to 30% in reflective environments such as snow or sand. Floating solar farms can raise output by roughly 15% due to water cooling of the panels. Covering 10% of the world’s reservoirs…
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In 2024, global clean energy investment was projected to reach $2 trillion, nearly twice the amount spent on fossil fuels. Renewable power, grid upgrades, and storage now attract more capital than oil, gas, and coal combined. Renewable energy jobs jumped to 16.2 million in 2023, up 18% from 2022. Solar PV module prices have fallen…
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South Korea’s Hanyang University researchers developed a boron-doped cobalt phosphide catalyst that halves hydrogen fuel cost, remains stable for over 100 hours, and outperforms platinum and iridium electrodes. Sweden’s Linköping University created a triple-layer photoelectrode (cubic silicon carbide, cobalt oxide, nickel hydroxide) that produced eight times more hydrogen than silicon carbide alone and aims for…
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Global energy investment is projected to reach $3.3 trillion in 2025, with about $2.2 trillion directed to clean energy technologies. Solar is expected to attract $450 billion in 2025, making it the single biggest area of energy investment. China added 198 GW of solar and 46 GW of wind between January and May 2025, with…
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The space-based solar power (SBSP) concept was proposed in 1968 by Peter Glaser to place satellites in orbit and beam power to Earth. In 2023 Caltech’s Space Solar Power Demonstrator (SSPD-1) conducted three beaming tests in May, June, and July 2023 using the MAPLE flexible array to show ground reception of orbital power. In June…
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