Clean Tech

Not quite a coal renaissance

A ‘filterless’ air purifier made in India

The hot-button issue of air conditioners

Cooling cities amidst the scorching heat

Latest

May 15, 2022

‘Cut emissions now’

May 15, 2022

Not quite a coal renaissance

May 15, 2022

The hot-button issue of air conditioners

May 15, 2022

A ‘filterless’ air purifier made in India

May 03, 2022

Cooling cities amidst the scorching heat

May 02, 2022

Can net-zero hitch a ride with sustainable mobility?

May 02, 2022

Should sun power EVs on the green highway?

Apr 16, 2022

Human toll of heatwaves

Apr 16, 2022

A mission delayed but possible

Apr 16, 2022

Trace, calculate, and reduce your carbon footprint

May 03, 2022

Cooling cities amidst the scorching heat

Apr 04, 2021

Climate-related disclosures are on the rise

Aug 28, 2019

From drought-stricken to ‘water capital’: The Chennai transformation

Oct 08, 2019

The oceans are set to boil

Sep 05, 2021

Mitigate risks to unlock climate finance

Sep 25, 2019

Battery swap for cost slash: The buzz stops here

Jun 27, 2021

Can smart meters turn around discoms?

Dec 12, 2021

How to plan the ban on single-use plastic

Oct 03, 2021

Smart grids and corridors of green power

Aug 22, 2021

Interconnected power: One sun, one world, one eco-friendly grid

May 15, 2022

‘Cut emissions now’

May 15, 2022

Not quite a coal renaissance

May 15, 2022

The hot-button issue of air conditioners

May 15, 2022

A ‘filterless’ air purifier made in India

May 03, 2022

Cooling cities amidst the scorching heat

May 02, 2022

Can net-zero hitch a ride with sustainable mobility?

May 02, 2022

Should sun power EVs on the green highway?

Apr 16, 2022

Human toll of heatwaves

Apr 16, 2022

A mission delayed but possible

Apr 16, 2022

Trace, calculate, and reduce your carbon footprint

May 03, 2022

Cooling cities amidst the scorching heat

Apr 04, 2021

Climate-related disclosures are on the rise

Aug 28, 2019

From drought-stricken to ‘water capital’: The Chennai transformation

Oct 08, 2019

The oceans are set to boil

Sep 05, 2021

Mitigate risks to unlock climate finance

Sep 25, 2019

Battery swap for cost slash: The buzz stops here

Jun 27, 2021

Can smart meters turn around discoms?

Dec 12, 2021

How to plan the ban on single-use plastic

Oct 03, 2021

Smart grids and corridors of green power

Aug 22, 2021

Interconnected power: One sun, one world, one eco-friendly grid

Other

From drought-stricken to ‘water capital’: The Chennai transformation

Let’s not miss the sodium-battery bus

India was late to semiconductor and lithium-ion battery manufacture but is well up on research here, says M Ramesh

Using microbes to save water

A Chennai-based start-up is set to unleash the power of ‘industrial probiotics’

The sweet spot in solar

Start-ups promise high returns if you invest in them but there’s a catch, cautions M Ramesh

The oceans are set to boil

An IPCC special report generates more evidence on oceans buckling under global warming. We have no choice but to become more resilient, says M Ramesh

COP 26: A loudspeaker for climate action

Though the Glasgow negotiations had profound shortcomings, it united the world to urgently address the environmental emergency

Winds of disquiet

Despite big volumes, there is a sense of unease in the domestic wind industry. M Ramesh explains why

Picking up the threads

The renewables industry hopes that the new government at the Centre will make appropriate policy changes for the sector to grow, reports M Ramesh

Geoengineering — an idea whose time is coming?

Now, more than ever, human interventions to manipulate the environment to check the rise in temperature are needed, says M Ramesh

The picture doesn’t look sunny

The solar sector is set to face even more challenges in 2019 than in the previous year. M Ramesh takes stock of the situation

local challenges Solar self-reliance stays in the shadows

Does India have what it takes to compete with Chinese manufacturing might in everything from silicon to modules?

Whither open access?

The Electricity Act 2003 will soon complete 15 years, but it is still far away from its goal, writes M Ramesh

planet’s purse strings Mitigate risks to unlock climate finance

The slow flow of green funds — nearly $3.5 trillion — must be addressed urgently to help emerging economies transition to clean energy

A sunny picture, with some shadows

India’s solar sector has just crossed a milestone — 25 GW of installed capacity. But there are some issues of concern too, says M Ramesh

Many positive features in Tamil Nadu’s new solar policy proposal

Dirty secret It’s a wrong haul for coal-fired plants

A more efficient system of power procurement, rather than ‘cheapest first’, can cut daily coal consumption by millions of tonnes

COP and carbon

The best outcome of COP25 from India’s perspective could be the framing of rules for carbon trading

Corona won’t trip green energy

Although the Covid-19 pandemic could tilt the scales temporarily, the strong foundation laid in recent times will stand renewables in good stead, says

cop26 agenda Green miles to go and promises to keep

The world gathers for yet another pow-wow at the climate conference in Glasgow. What can we expect to gain from this round?

Auctions to turn the spotlight on Coal vs Renewables

Even as energy markets seem to be elbowing out coal, the privatisation of the industry is happening, says M Ramesh

NIWE has done a lot...

...some, however, say it can do a lot more

Emerging desalination techprovides scope for solar play

light and shade The goofed-up story of rooftop solar

The segment is seeing big growth during the pandemic, but a host of reasons — including governmental missteps — threaten to dim it

Battery swap for cost slash: The buzz stops here

Raising the density of e-buses wherever possible will reduce the cost of operations

A green listing to break renewables’ dry spell

Gensol Engineering to tap the market

data power Can smart meters turn around discoms?

They can help electricity suppliers manage operations better, but the target of installing 250 million meters by 2022 may not be easy

This is a booming market, we are seeing a lot of investment opportunities: CleanMax Solar co-founder

Andrew Hines says the company’s business is capital-intensive

Time to step up carbon trading

Now is the opportunity for Indian companies to start looking to benefit from carbon offsets keenly, say experts. M Ramesh reports

Gearing up for the winds of change

The wind energy industry is once again buoyant with expectations rising on the back of fresh auctions, says M Ramesh

India Inc still not up to speed with climate action

Companies need to look far beyond renewable energy and water conservation, says M Ramesh

Two, three....Go!

What is the best way to rapidly roll out electric vehicles in India? Start with the low-hanging fruit — two-wheelers and three-wheelers, says M Rame

The microgrid revolution in Bihar

How electrification lit up some 44,000 households spread across 240 villages. M Ramesh reports

The ‘WTF’ factor in climate negotiations

“Where's the finance,” was the right question asked at the climate meet in Poland, as there is widespread dissatisfaction over both what the ruleb

The ‘solar moment’ in carbon

If the 2010-2020 decade was one in which solar got mainstreamed, 2020-2030 will be the decade of CO2-to-fuels, says M Ramesh

A green role for dirty coal

In the last couple of years, a quiet revolution called ‘flexibilisation of coal’ has been gaining ground, whereby coal plants supply power only w

Why aren’t Indian companies warming to green bonds?

Besides lack of price advantage, there are other factors at play, says M Ramesh

A new pitch from God’s Own Country

Kerala’s tourism revival package has new products and a unique positioning with an eye on the post-pandemic domestic traveller

‘Arbitrability’ in times of fast emerging techno-centric businesses in India

The Supreme Court has presented what is called a “four-fold” test to determine the question of arbitrability of the subject matter

India spotlights green shipping

Guidelines for incorporation of green initiatives across ports are in the works

Four biases to avoid in today’s market conditions

Being aware of your biases will help you become a better investor. Here’s how.

Index Outlook: How far can Sensex and Nifty 50 fall?

The sell-off intensifies in the indices outlook is bearish and any bounce from current levels will be short-lived

Bullion Cues: Is gold and silver losing sheen?

Further decline in futures likely

Auroville: An utopian search for a better world

Akash Kapur’s ‘Better to Have Gone’ traces what happens when we believe deeply in a quest and give up everything in its pursuit

Lady doctors and the rocky path to healing

A handbook on India’s first women doctors holds up a mirror to the social and political realities of the 19th and early 20th century

Conquering Everest: A compelling account of how an impossible dream was achieved

Jim Davidson dwells in detail on the failure to make it in the first attempt and the harrowing return to physically and emotionally draining climb up