Ember Current - August 2025 Newsletter | Ember

Five years in, our research is still electrifying

Ember Current – August 2025 Newsletter

4 Aug 2025

I’ve been lucky enough to spend a few weekends camping in my electric van this month – although it’s a small van, and with a new baby, it’s feeling even smaller! Electric vehicles are rapidly replacing fossil vehicles in Britain – and the same is true of India, where my colleague Ruchita has recently shown that sales have increased 11x since 2020. Electric vehicles in India are becoming part of the new flexible power system as the world turns more and more towards electrification.

Five years have passed since Ember was founded to accelerate the energy transition, and to celebrate, I’ll be sharing my top five picks for Ember research, media coverage and further reading. Over the years, we have evolved to cover not just clean power, but a clean, electrified world. Ember analysis now also focuses on battery storage, grid interconnection and – of course – electric vehicles. Just as my electric van drove us towards a coastal camping adventure with our little one, electrification is driving the world towards greater energy security and falling fossil fuels.

– Phil MacDonald, Managing Director

 

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Insights, analyses and commentaries

My top five picks for July

In every sector, electricity brings innovation upon arrival. Technologies modernise and become more efficient, and the knock-on effect can cause a reduction in electricity demand growth. Nowhere is this efficiency more important than in cooling, which the world increasingly needs to cope with the impacts of climate change. Analysis led by our interim Europe Director, Pawel, gives a new perspective on the region’s heatwaves, whilst Energy Analyst Biqing Yang shows how China’s cooling stock is increasingly efficient as the government takes big steps to trade in older air conditioners.

China’s consumer goods trade-in: accelerating cooling efficiency in a warmer climate

China’s consumer goods trade-in programme is reducing electricity consumption from cooling. Ember estimates across China residential electricity use for cooling could fall by up to 4.1% in summer 2025.

Read the report
Bar charts showing projected reductions in residential cooling electricity consumption in China across cold, average, and hot summer scenarios in 2025, assuming optimised room air conditioner (RAC) stock. Electricity savings peak in July, especially during a hot summer, with reductions nearing 4 TWh. All scenarios indicate consistent midsummer savings.

Heat and power: Impacts of the 2025 heatwave in Europe

A June–July heatwave has caused stress for European power systems, driving electricity demand and doubling daily power prices. Yet grids remained stable, fueled by record volumes of solar.

Read the report

From fossil to flexible: Advancing India’s road transport electrification

Synchronising electric vehicle charging with renewable energy generation offers a readily achievable opportunity in India’s journey to decarbonisation.

Read the report
A Sankey chart showing emissions in metric tonnes across three vehicle types—three-wheelers, private four-wheelers, and commercial four-wheelers—as they transition from internal combustion engine (ICE) vehicles to electric vehicles (EVs) powered by the 2024 electricity mix and then by a high-renewables grid in 2032. For three-wheelers, emissions fall from 4.83 tonnes with ICE vehicles to 2.16 tonnes with EVs on the 2024 grid, and further to 1.28 tonnes on a high-renewables grid—reflecting a 55% reduction from switching to EVs and an additional 18% reduction from grid decarbonisation. Private four-wheelers show a drop from 3.28 tonnes (ICE) to 2.12 tonnes (EV, 2024 grid), then to 1.26 tonnes (EV, high renewables), with 35% and 26% reductions respectively. For commercial four-wheelers, emissions decline from 6.34 tonnes under ICE to 4.25 tonnes under the 2024 grid and down to 2.51 tonnes with a high-renewables grid—representing a 33% reduction from electrification and an additional 27% cut from cleaner power.

The long march of electrification

A century of growth in electricity has brought us to the Age of Electricity.

Read the report
Fossil energy use per capita plateaued in the 70s; electricity use has kept rising

Drax is still the UK’s largest emitter

Drax power plant tops the list of largest carbon emitters in the UK, followed by Port Talbot Steelworks and Pembroke gas power station as coal and steel closures shake up rankings.

Read the report

There’s more! Here’s five other impactful Ember insights from over the years

  • Solar BRICS: Emerging economies now lead the world’s clean energy race | Read the report
  • Global Electricity Review 2025 | Read the report 
  • What’s new with national renewable targets? Not much! | Read the report
  • Why wind and solar are key solutions to combat climate change | Read the report
  • In The Dark: underreporting of coal mine methane is a major climate risk | Read the report

 

Five key moments Ember was in the news this month

  • Solar+storage is so much farther along than you think | Volts Podcast
  • China’s Efforts to Ensure Summer Power Supply Get an Assist from Air-Con Trade-Ins | Bloomberg
  • Solar tops EU power mix for first time in June, Ember says | Reuters
  • Global Electricity Review 2025 | The Energy Transition Show
  • Dire predictions about renewable energy were all wrong | The Washington Post

 

Five more things I’m reading

  • Abundance by Ezra Klein and Derek Thompson | Read more
  • 4.6 Billion Years On, the Sun Is Having a Moment | Read more
  • The US Is Losing the Electrification Race to Asia | Read more
  • The IEA’s Electricity Mid-Year Update 2025 | Read more
  • Power Systems Transformation: Delivering Competitive, Resilient
    Electricity in High-Renewable Systems | Read more

Visual storytelling corner

Chart of the month

I chose this graphic by Reynaldo Dizon because it illustrates the sheer scale of emissions from Drax biomass power station – its towering height and the use of bold red make it stand out, reinforcing a sense of urgency and highlighting serious environmental implications.

By mapping emitters geographically, the graphic reveals clear regional patterns. Clusters emerge in the UK’s industrial and coastal zones, visualising the impact of emissions in real places and making the data feel more tangible and locally important.

Country spotlight

Almost half of US states generated at least 10% of their electricity from solar in May, leading to a national solar record of 11.2%. California, an early adopter of both distributed (rooftop) and utility scale solar, had the highest share at 45%. Nevada, Massachusetts, Hawaii and Utah all achieved over 25%. Texas and Florida have recently accelerated their solar build-out, going from near zero five years ago to over 10% in May 2025. Texas is currently the state with the fastest utility scale solar build-out of any state in US history.

Explore more

In case you missed it

Did you know?

In June, for the first time ever, solar was the EU’s largest power source.

Solar generated 22.1% of EU electricity in June, pushing coal to an all-time low of 6.1%. Solar records were set in at least thirteen member states, helping the EU power system handle spikes in demand resulting from heatwaves towards the end of June.

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Ember Current is a revamp of an existing monthly newsletter delivered to our subscribers. Ember Current is written by a different one of our analysts each month, bringing you their own top picks of Ember’s insights and a little window into what has felt important to them over the course of the last few weeks. If you want to receive these updates each month, scroll to the bottom of this page and sign up! For queries and feedback, please reach out to [email protected].

Featured image credits

Tom Fisk / Pexels

Acknowledgements

Claire Kaelin, Chelsea Bruce-Lockhart, Euan Graham, Lauren Orso, Kavya Sharma, Phil MacDonald, Rashmi Mishra, Reynaldo Dizon

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