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Kolkata’s peak power demand for Durga Puja to rise marginally

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Kolkata: Thanks to LED bulbs, in wider use for their low power usage, the peak demand of electricity during the upcoming Durga Puja festivities here will see an increase of only 50 MW in comparison to 186 MW last year, it was officially estimated.

While the peak demand for power during the Durga Puja days last year rose by 11.17 percent in comparison to 2013, this year’s peak demand is estimated to rise by only 2.7 percent in comparison to 2014.

“This is because of the increased usage of LED bulbs,” Sanjiv Goenka, the chairman of RP-Sanjiv Goenka Group-owned CESC, told mediapersons on Thursday.

CESC is the sole electricity supplier here.

The peak demand of power in the city’s festive days stood at 1,664 MW in 2013, which climbed to 1,850 MW last year. However, this year, the estimated peak demand is 1,900 MW.

He said the percentage increase in peak demand for power has come down despite an increase in temporary power connections to 3,780 puja pandals. Last year, the company had provided similar connections to 3,715 such makeshift pandals.

Nevertheless, the power demand from the top ten puja pandals has increased this year.

According to estimates of the RP-Sanjiv Goenka group company, against a total consumption of 1,306 KW last year, this year, the city’s top ten puja committees are estimated to consume 1,626 KW.

“The total power demand from puja pandals this year is estimated at 41.8 lakh units as compared to 41.4 lakh units last year, Goenka said.

Like other years, the company will also be conducting drives across the puja pandals to check for pilferage and unauthorised connections.

Goenka said CESC is fully geared to meet the city’s power demand during the festive days.

(IANS)

 

 

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Study Reveals Solar Cells Can Retain Most Of Their Power Conversion Efficiency in Near Space

In the study, researchers from China's Peking University sent the devices fixed with PSCs into near space on a high-altitude balloon.

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solar energy
Perovskite solar cells (PSCs) are known for their potential of achieving higher efficiency and low production costs compared to traditional silicon solar cells. Pixabay

Chinese researchers have found that solar cells can retain most of their power conversion efficiency in near space, providing perspectives on the cells’ future application in space.

Perovskite solar cells (PSCs) are known for their potential of achieving higher efficiency and low production costs compared to traditional silicon solar cells.

These cells also have great potential for developing the new-generation energy technology for space application, but little research has been done to test the stability of PSCs in the extreme space environment, Xinhua news agency reported.

In the study, researchers from China’s Peking University sent the devices fixed with PSCs into near space on a high-altitude balloon.

energy
These cells also have great potential for developing the new-generation energy technology for space application, but little research has been done to test the stability of PSCs in the extreme space environment, Xinhua news agency reported. Piixabay

The balloon rose to near space at an altitude of 35 km, a region above Earth’s atmosphere where there is only a trace amount of moisture and ozone.

The region, considered to have “air mass zero” contains no atmospheric attenuation of solar radiation and therefore several high-energy particles and radiation, such as neutrons, electrons and gamma rays, originate from the galactic cosmic rays and solar flares.

solar cells
Chinese researchers have found that solar cells can retain most of their power conversion efficiency in near space, providing perspectives on the cells’ future application in space.
Pixabay

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According to the findings, one type of PSCs used in the study retained more than 95 per cent of its initial power conversion efficiency during the test, the researchers reported in the journal Science China Physics, Mechanics and Astronomy.

They said the study is expected to play a crucial role in the future stability research of PSCs. (IANS)