Solar Energy

Reply filed by the state of Odisha regarding increasing instances of high energy swell waves, May 1, 2025

Reply filed by the Director, Environment-cum-Special Secretary, Forest, Environment and Climate Change Department, Odisha and Member Secretary, Odisha Coastal Zone Management Authority, May 1, 2025. NGT, had registered suo motu in response to the news item in the Hindu, May 4, 2024 titled "Swell waves likely to strike coastal areas …

Harnessing renewables

tapping renewable energy seems to be in the blood of the residents of Auroville, the little township located on the outskirts of Pondicherry. Beginning with solar energy to power their houses way back in 1970's, the community is today exporting energy efficient equipment like PV pumps, wind turbines and biogas …

A sunny mandate

geyser manufacturers could soon be out of business in Haryana. As a part of its energy conservation effort, the state government has made the use of solar water heating system (swhs) mandatory in private functional buildings such as hospitals and hotels. A regulation that makes the installation of swhs compulsory …

Watered down

aerosols may be the culprits weakening the Earth's water cycle by reducing rainfall. This was discovered during a study conducted by researchers at the Scripps Institution of Oceanography, University of California, San Diego, usa. According to the researchers, the tiny aerosols that are primarily made up of black carbon could …

Sun lighting up the valley

come winter and the inhabitants of Lahaul Spiti district of Himachal Pradesh face bleak days ahead. Heavy snow brings life to a grinding halt. But an exception is the Mayad valley, where solar home lighting systems have brought more than a glimmer of cheer on the faces of its inhabitants. …

Warm cold relationship

the brightening and dimming of the Sun may account for a 1,500-year cycle of cooling and warming on parts of the Earth, suggests a study. The study was done by researchers at the Lamont-Doherty Earth Observatory of Columbia University in Palisades, New York, usa. According to them, a very slight …

Fuels for the future

Alternatives hold the key to the future of the automobile industry. There is tremendous potential both in terms of performance as well as reduced health risks. But the automobile sector has failed to show any real interest in these fuels. Consider this: the use of alternative fuels can reduce the …

Future power

the uk government is promoting solar energy in a big way. It has offered energy companies three million pounds to help develop solar power systems for public buildings like schools, churches and hospitals. Energy Minister Brian Wilson said the money could lead to the construction of 12 to 15 large-scale …

Heat traps

black carbon aerosol pollution, produced by humans, can impact global climate as well as seasonal cycles of rainfall shows new research based upon satellite data and a multi-national field experiment. Aerosols that contain black carbon both absorb and reflect incoming sunlight, therefore they can exert a regional cooling influence on …

FOLLOW UP

The world's first solar-powered aircraft, Helios, has made a world altitude record. It reached 24.7 km, five hours and 16 minutes after its launch from the us navy's Pacific Missile Range Facility at Barking Sands, Kauai. Helios, the aircraft of the National Aeronautics and Space Administration (nasa), surpassed the all-time …

A ray of solar hope

when darkness approaches Sagar Island in the Sunderban delta of West Bengal, life no longer comes to a standstill. A silent revolution is slowly taking place in this remote island. More than 1000 houses are today electrified by solar energy through distribution lines, and more such projects are in the …

Solar wings

the world's first solar-powered aircraft, Helios, successfully completed its 18-hour test flight over the Pacific Ocean on July 15, 2001. Helios, the unmanned aircraft of National Aeronautics and Space Administration ( nasa ) powered by 62,000 solar cells, reached an altitude of almost 22 kilometres (km) before descending. The craft …

Wonders of the Sun

the solar lighting system in Mundanmudy village, the largest installation of its kind in the world, has changed the life-style of local people here. The hundreds of houses (393 precisely) lined one after the other with bright solar panels in this village of Idukki district in Kerala, are quite impressive. …

Doomsday?

the Sun is going to run out of fuel in about 7-8 billion years. What will happen to the planets then, especially to Earth? Research suggests, if tidal forces are taken into account, then the Earth is likely to evaporate when the Sun treads towards its death ( Icarus , …

First solar funicular

The world's first solar-powered funicular, a type of cable railway, has started operating between Italy's Livorno town and the Montenero sanctuary. Photovoltaic (PV) panels on buildings bordering the funicular's parking lot supply 90 per cent of the electricity drawn by funicular's year-round operation. The PV panels are connected to an …

A headache called Bush

the long-awaited us energy policy is finally out and its contents have come as no surprise. For people in the oil and gas industry, it is a dream come true. But for environmentalists, it is a disaster waiting to happen. The reliance on fossil fuels rather than renewable energy is …

Costa Rica

At least 11,000 Costa Rican homes will soon have access to electricity, thanks to a solar energy project. Solarica, a Dutch company, is investing us $11.5 million to provide solar energy to people living along the country's rainforests. At a monthly cost of about us $10, a household will have …

Beaming with energy

Electricity generated in space using light from the sun can now be converted into microwaves and transmitted to the Earth using technology developed by National Space Development Agency of Japan and Kyoto University, Japan. It requires a satellite equipped with a huge solar panel developed by the two institutions. The …

Solar solution

Solarica, a privately owned Dutch company, is investing US $11.5 million to bring solar energy to 11,000 families whose houses are scattered alongside the dense foliage of Costa Rica's rainforests. At a monthly cost of about US $10, a family will have access to 50 watts of electricity per day …

Largest solar plant

the world's biggest solar electric power plant

Small is efficient

Hollow, pure carbon cylinders, one-billionth of a metre in diameter

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