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Go Solar: The new mantra

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By Ila Garg

Opting for renewable energy is fast becoming the new trend. Every other household is finally seeing the benefits of solar energy: a source of electricity that is renewable, off-the-grid, clean, distributed and most importantly, affordable.

India can be most benefited from this renewable energy as more than half of the population still lives in rural areas where the grid cannot reach. These remote areas have therefore never seen electricity. They are lurking in the darkness as the world progresses each day. Now, India can finally move out of the darkness and into light, with at least 55 cities being developed as solar cities.

Taking a step towards solarising India, on Thursday, Delhi Power Minister Satyendra Jain released a Delhi Solar Energy Policy 2015 draft. This Policy aims at generating 1,000 MW of solar power in the next five years. This will help in resolving power cut worries quite easily.

SolarPanels

At an event at the secretariat, Satyendra Jain remarked, “To promote solar energy, solar panels will be installed on the roof-tops of every government building and we’ll start with the Delhi Secretariat.”

The minister also revealed that a tender for 5MW solar power generation has been floated. “We have a target to generate 1,000 MW of solar power in the next five years and 2,000 MW by 2025,” he said.

He further added, “This solar policy will promote a rapid growth of solar power, especially from the roof-top source, via a combination of generation targets, regulations, mandate and incentives. This will also promote net-metering and grid connectivity for all solar plants.”

If all goes well, very soon, every household in Delhi will not only have access to an uninterrupted power supply but also save on the electricity bills.

Earlier, the Rajasthan government had approved of an investment of Rs. 1.56 lakh crore in the solar power sector. Sighting the benefits of solar power, the world’s first 12 MW solar power plant was inaugurated by Kerala’s chief minister at the Kochi airport. No wonder the newest metro line added to Delhi metro is NCR’s first solar equipped metro line.

Overseas, China too has already started building its largest solar plant to meet its voluptuous power needs. That’s not all. The enormous usage of this clean, green energy will leave you astonished; the first solar-powered aircraft Solar Impulse 2, made its first successful flight on 3 July, 2015.

solar

The initial installation cost is a little on the higher side. However, since the cost can be recovered in a span of a few years, it remains a lucrative deal. Also, the enormous benefits cannot be ignored. What makes solar power the talk of the town is the fact that it is 100% eco-friendly and can reach the areas where the grid cannot.

Does that mean we will see a solar world soon?

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Copyright 2015 NewsGram

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NASA’s instrument to measure Sun’s energy

For instance, spectral irradiance measurements of the Sun's ultraviolet radiation are critical to understanding the ozone layer -- Earth's natural sunscreen

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NASA, Pixabay
  • NASA’s new instrument can measure Sun’s incoming energy
  • The instrument is called Total and Spectral Solar Irradiance Sensor (TSIS-1)
  • This can help bring in an energy revolution in future

To continue long-term measurements of the Sun’s incoming energy, NASA has powered on a new instrument installed on the International Space Station (ISS).

Sun
Solar energy is one of the biggest energy sources in the world.

The instrument, Total and Spectral solar Irradiance Sensor (TSIS-1), became fully operational with all instruments collecting science data as of this March, NASA said.

“TSIS-1 extends a long data record that helps us understand the Sun’s influence on Earth’s radiation budget, ozone layer, atmospheric circulation, and ecosystems, and the effects that solar variability has on the Earth system and climate change,” said Dong Wu, TSIS-1 project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. TSIS-1 studies the total amount of light energy emitted by the Sun using the Total Irradiance Monitor, one of two sensors onboard.

Also Read: Why is the Sun’s atmosphere much hotter than its surface

This sensor’s data will give scientists a better understanding of Earth’s primary energy supply and provide information to help improve models simulating the planet’s climate.

The second onboard sensor, called the Spectral Irradiance Monitor, measures how the Sun’s energy is distributed over the ultraviolet, visible and infrared regions of light. Measuring the distribution of the Sun’s energy is important because each wavelength of light interacts with the Earth’s atmosphere differently.

Measuring solar energy is one big technological developement. Pixabay

For instance, spectral irradiance measurements of the Sun’s ultraviolet radiation are critical to understanding the ozone layer — Earth’s natural sunscreen that protects life from harmful radiation.

“All systems are operating within their expected ranges,” said Peter Pilewskie, TSIS-1 lead scientist at the University of Colorado Laboratory for Atmospheric and Space Physics in the US. IANS