Archive for ‘wind’

14/05/2020

India’s carbon emissions fall for first time in four decades

A view of clear blue and white skies, clean air in the city during the nationwide lockdown to curb spread of coronavirus (Covid-19) at sector-30 near Delhi-Gurugram expressway on April 20, 2020 in Gurugram, India.Image copyright GETTY IMAGES

India’s CO2 emissions have fallen for the first time in four decades – and not just as a result of the country’s coronavirus lockdown.

Falling electricity use and competition from renewables had weakened the demand for fossil fuels even before the coronavirus hit, according to analysis by the environmental website, Carbon Brief. However, it was the sudden nationwide lockdown in March that finally tipped the country’s 37-year emissions growth trend into reverse.

The study finds that Indian carbon dioxide emissions fell 15% in March, and are likely to have fallen by 30% in April.

Virtually all of the drop-off in power demand has been borne by coal-fired generators, which explains why the emissions reductions have been so dramatic.

India emissions fall chart

Coal-fired power generation was down 15% in March and 31% in the first three weeks of April, according to daily data from the Indian national grid.

But even before India’s sudden coronavirus lockdown, the demand for coal was weakening.

The study finds that in the fiscal year ending March 2020, coal deliveries were down by around 2%, a small but significant reduction when set against the trend – an increase in thermal power generation of 7.5% a year set over the previous decade.

Indian oil consumption shows a similar reduction in demand growth.

Vehicles move through DLF Cybercity during nation wide lockdown amid Covid-19 coronavirus pandemic in GurugramImage copyright GETTY IMAGES
Image caption The nationwide lockdown finally tipped a 37-year emissions growth trend into reverse

It has been slowing since early 2019.

And, once again, the trend has been compounded by the impact of the Covid-19 lockdown measures on the transport industry.

Oil consumption was down 18% year-on-year in March 2020.

Meanwhile, the supply of energy from renewables has increased over the year and has held up since the pandemic struck.

This resilience the renewables energy sector shows in the face of the sudden reduction in demand caused by coronavirus is not confined to India.

Media caption Delhi smog disappears during India’s lockdown

According to figures published by the International Energy Agency (IEA) at the end of April, the world’s use of coal was down 8% in the first quarter of the year.

By contrast, wind and solar power saw a slight uptick in demand internationally.

A key reason that coal has taken the brunt of the fall in electricity demand is that it cost more to run on a day-to-day basis.

Once you have installed a solar panel or a wind turbine, operating costs are very low and, therefore, tend to get priority on electricity grids.

This photo taken on December 7, 2017 shows Indian labourers loading coal onto trucks at an open mine in Dhanbad in the eastern Indian state of Jharkhand.Image copyright GETTY IMAGES
Image caption India’s use of coal has plummeted, in line with that of other countries

Thermal power stations – those powered by coal, gas or oil – by contrast, require you to buy fuel in order to generate power.

But analysts warn that the decline in fossil fuel use may not last.

They say when the pandemic subsides, there is a risk that emissions will soar again as countries attempt to kick-start their economies.

The US has already started to relax environmental regulations and the fear is other nations could follow suit.

However, the analysis from Carbon Brief suggests there are reasons to think India could buck this trend.

The coronavirus crisis has brought the long-brewing financial troubles in the Indian coal sector to a head, and the Indian government is finalising a relief package which could top 900bn rupees ($12bn; £9.6bn).

But, at the same time, the government is talking about supporting renewable energy as part of the recovery.

Wind turbines generate electricity in Punniyavalanpuram, Tamil Nadu, India.Image copyright GETTY IMAGES
Image caption Renewables have the economic edge in India, offering far cheaper electricity than coal

Renewables have the economic edge in India, offering far cheaper electricity than coal.

The report claims that new solar capacity can cost as little 2.55 rupees per kilowatt hour, while the average cost for electricity generated from coal is 3.38 rupees per hour.

Investing in renewables is also consistent with the country’s National Clean Air Programme, launched in 2019.

Environmentalists hope the clean air and clear skies Indians have enjoyed since lockdown will increase public pressure on the government to clean up the power sector and improve air quality.

Source: The BBC

21/04/2020

India coronavirus: Can the Covid-19 lockdown spark a clean air movement?

Delhi before and after the lockdownImage copyright GETTY IMAGES
Image caption Delhi’s air quality has improved remarkably during the shutdown

When India shut down last month and suspended all transport to contain the spread of coronavirus, the skies over its polluted cities quickly turned an azure blue, and the air, unusually fresh.

As air pollution plummeted to levels unseen in living memory, people shared pictures of spotless skies and even Himalayan peaks from cities where the view had been obscured by fog for decades.

On one social messaging group, a resident of the capital, Delhi, which regularly records some of the foulest air in the world, celebrated the city’s “alpine weather“. Politician and author Shashi Tharoor wrote that the “blissful sight of blue skies and the joy of breathing clean air provides just the contrast to illustrate what we are doing to ourselves the rest of the time”.

Media caption India coronavirus lockdown cleans up Ganges river

Less than six months ago, Delhi was gasping for breath. Authorities said air quality had reached “unbearable levels”. Schools were shut, flights were diverted, and people were asked to wear masks, avoid polluted areas and keep doors and windows closed.

Delhi and 13 other Indian cities feature on a list of the world’s 20 most polluted. It is estimated that more than a million Indians die every year because of air pollution-related diseases. Industrial smoke, vehicular emissions, burning of trash and crop residue, and construction and road dust are the major contributors.

As urban Indians gazed at the skies and breathed clean air inside their homes, researchers hunkered down to track data on how the grinding lockdown – now extended to 3 May – was impacting air pollution across the country.

LucknowImage copyright GETTY IMAGES
Image caption Lucknow is another city on the top 20 world’s most polluted list

“This was an unprecedented opportunity for us to take a close look at how air pollution levels have responded to an extraordinary development,” Sarath Guttikunda, who heads Urban Emissions, an independent research group that provides air quality forecasts, told me.

Federal pollution control authorities quickly reported a marked improvement in air quality levels in 85 cities.

Dr Guttikunda and his team of researchers looked at the data spewed out by the 100-odd air quality monitoring stations all over India. They decided to concentrate on the capital Delhi and its suburbs – a massive sprawl called the National Capital region, where more than 20 million people live. Last winter, air pollution here had reached more than 20 times the World Health Organization’s safe limit.

Mumbai before and after the lockdownImage copyright HINDUSTAN TIMES
Image caption The financial capital Mumbai also seems very different

The deadliest particle in Delhi’s foul air is the tiny but deadly PM 2.5, which increases the likelihood of respiratory and cardiovascular diseases. They primarily come from combustion – fires, automobiles and power plants.

Urban Emissions found the levels of PM 2.5 in Delhi during the lockdown plummeted to 20 micrograms per cubic metre with a 20-day average of 35.

To put this into context, between 2017 and 2019, the monthly average of PM 2.5 in the capital was up to four times higher. (The national standard is set at 40, and the WHO has an annual average guideline of just 10 micrograms per cubic metre.)

“If 35 is the average lowest available PM2.5 with limited local emissions, it means that at least 70% of the pollution is locally generated,” Mr Guttikunda told me.

Media caption India coronavirus lockdown cleans up Ganges river

His study also found a marked dip in PM 10, caused mainly by road and construction dust, and nitrogen dioxide, which comes mainly from vehicular emissions, and nearly 90% of vehicles are off the road.

“The current crisis has shown us that clear skies and breathable air can be achieved very fast if concrete action is taken to reduce burning of fossil fuels,” says Sunil Dahiya, of the Centre for Research on Energy and Clean Air, which has also been tracking air pollution levels during the lockdown.

But will this prompt change? After all, urban Indians’ and the media’s panic and outrage during the deadly winter pollution every year soon gets lost in the fog of summer heat and concerns over monsoon rains and droughts.

“We don’t yet have a democratic demand for clean air,” Arunabha Ghosh, Chief Executive Officer of the Council on Energy, Environment and Water, a leading climate think tank, told me. Orders to clean up the air have almost always come from the courts, responding to pleas by NGOs.

Delhi pollutionImage copyright GETTY IMAGES
Image caption Pollution in Delhi peaks during winter

However, Dr Ghosh still hopes that “the experience of blue skies and fresh air could be a trigger to create a democratic demand for clean air in India”.

Crises often trigger life changing reforms. A fatal four-day “pea-souper” that engulfed London in 1952 and killed thousands provoked the passing of the Clean Air Act to reduce the use of smoky fuels.

China tried to clean up its air several times before hosting marquee international events – like the Beijing Olympics in 2008, the World Expo in Shanghai and the Guangzhou Asian Games in 2010 – before sliding back to grey, smoky skies.

But many believe the 2014 Apec meeting in Beijing, when China hosted 21 heads of Asia-Pacific economies, was a turning point. The rare blue skies over Beijing spawned the phrase ‘Apec blue‘. In a rush to clean its air, China introduced a set of far-reaching measures. Over the next four years, this resulted in a 32% drop in average pollution across major Chinese cities.

So could a lockdown to prevent the spread of a pandemic, which has imperilled the health and livelihoods of millions, trigger similar policy changes to clean up India’s air?

pollution campaignImage copyright GETTY IMAGES
Image caption The movement for clean air has been sporadic and mainly pushed by NGOs

Could it move to a shift in reducing traffic on the road by asking people to work from home in shifts now that millions have experienced clean air for the first time in years? (Facing energy shortages after the loss of the Fukushima nuclear power plant, Japan unleashed a Cool Biz campaign to cut down air conditioning in workplaces and reduce carbon emissions by asking office workers to shed their suits.)

Or can India use some of the money from an inevitable stimulus to help kick-start the economy go towards helping green industries? Renewables, experts say, creates more jobs than coal: India has already created nearly 100,000 jobs in solar and wind energy firms.

Can the country use the windfall revenues accruing from the steep decline in oil prices – most of India’s oil is imported – to provide rebates to polluting factories to set up much-needed emission control equipment?

“We have to learn lessons to deploy the economic recovery from the pandemic. We need growth, jobs and sustainable development,” says Dr Ghosh. Cleaning up the air could be the key. For too long, India – and Indians – have ignored their right to breathe easy.

What’s more, if China can reduce air pollution by 32% in four-and-a-half years, why can’t India pledge to reduce pollution by 80% in 80 cities by 2027, which is our 80th anniversary of Independence? asks Dr Ghosh.

It’s a good question.

Source: The BBC

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