Debrief April 2, 2026: Countries ‘reviving’ energy crisis measures | Record renewable energy in the UK | Built-in solar savings

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The ultimate guide to the week’s key climate change events.

Reaction to the crisis

OIL RESERVES: The International Energy Agency (IEA) has warned that oil supply disruptions will worsen in April due to the war in Iran, reports CNBC. The publication adds that the IEA is considering the possibility of another release of strategic oil reserves. Meanwhile, US exports of liquefied natural gas (LNG) hit an “all-time high” in March, while shipments to Asia more than doubled from the previous month. Reuters.

“SLOW GROWTH”: The International Monetary Fund (IMF) warns that “all roads lead to higher prices and slower growth worldwide” if the war continues to choke supplies of oil, gas and fertilizers. Guardian. The IMF said Britain and Italy were “particularly vulnerable to their dependence on gas energy”, the newspaper added.

I’M PREPARING: The EU is considering “reviving the energy crisis measures” it applied at the start of the war in Ukraine, including “grid tariffs and electricity taxes”, according to Reuters. France is considering new measures to electrify its economy and reduce its dependence on fossil imports World. elsewhere BBC News gathered responses to the crisis from around the world, including fuel rationing, fuel tax cuts, working from home and free public transport.

COAL “MAP OUTPUT”: Some countries have announced plans to delay the shutdown of coal-fired power plants. Italy plans to delay phase-out of coal power until 2038, according to reports Reuters. Germany will reportedly consider reactivating reserve plants Bloomberg. South Korea has also extended three plants scheduled to close this year, he said Korea Times. However, separate Bloomberg the commentary stated that “any transition to burning more coal in 2026 will be short-lived”

• GAS OFF?: New Zealand’s government has cast doubt on plans to build an LNG import terminal as rising gas prices hurt the economy, it said New Zealand Herald. In addition, plans to build Vietnam’s largest LNG power plant may be scrapped in favor of a new renewable energy project. Reuters.
• SUMMIT on phasing out: Climate home news it is reported that 46 countries, including major oil producers, have confirmed that they will attend the fossil fuel divestment summit to be held in Colombia later this month.
• BABINA’S SUMMER: In India, it said, “hot days are forecast to be higher than normal through June, raising the risk of power shortages” as the Middle East conflict worsens energy pressures. Bloomberg.
• Floods in AFGHANISTAN: Heavy rains and floods in Afghanistan have killed at least 48 people and damaged communities after years of drought. Kabul now.
• WIND PURCHASES: In an attempt to stop remaining US offshore wind projects, the Trump administration is offering developers buyouts in exchange for investing in fossil fuels. Financial Times.

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66%

Annual increase in forest loss in Indonesia in 2025, according to the Indonesian Biodiversity Think Tank Auriga Archipelagoinforms Reuters.

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• New study examines ‘models of distributive justice’ in mitigation scenarios used in IPCC Sixth Assessment | npj Climate Action
• Antarctic surface melting to increase by more than 10% by 2100 if future greenhouse gas emissions remain high | Communications of nature
• The evolution of the urban heat island effect in Chinese cities “is not unidirectional, but depends on localized urbanization and greening dynamics” | PNAS Nexus

(For more information, see Carbon Brief’s daily in-depth summaries of top climate news Monday, Tuesday, Wednesday and Thursday.)

Carbon Brief The analysis found that the UK received a record level of combined wind and solar generation this year. The chart above shows monthly wind and solar capacity that reached 11 terawatt hours (TWh) in March 2026. At current high gas prices, this would save the UK almost £1bn a month in gas imports, according to the analysis.

How plug-in solar can lower your bills

Analysis by Carbon Brief this week shows that plug-in solar panels could save a typical household £1,100 over a 15-year lifetime.

In response to the long-term energy crisis, the British government announced on March 15 a package clean energy measures to “enhance” energy security. Among these was the UK’s introduction of ‘decoupled’ solar panels.

Insert panels

Compared to rooftop solar panels, smaller plug-in solar systems consist of one to two panels can be easily installed on balconies, in gardens and other open spaces. They can be plugged directly into home sockets without the need for additional wiring, reducing the amount of electricity drawn from the grid and thus reducing bills.

In Germany, the solar battery has already started to work on the official side registration already exceeds 1 m of installations (the actual number may be up to 4 m). Other is growing markets include France, Spain, the Netherlands and USA.

The panels could be available in the UK “within months” from retailers such as Lidl and Sainsbury’saccording to the government. (Many of the products from EcoFlow, one of the UK’s major solar suppliers, already full house online.)

Govt said it will work with the relevant authorities to update electrical regulations to allow the use of solar panels. The Institute of Engineering and Technology (IET) has advised homes to check the wiring before installation.

Costs and benefits

To assess the potential impact of solar, Carbon Brief conducted a cost-effectiveness analysis of an 800-watt (W) installation in a typical two- to three-bedroom house in London. Estimates are approximate and will vary for different locations and settings.

The optimally placed panels – facing south and tilted at about 40 degrees – will produce around 820 kilowatt-hours (kWh) each year in London – at “loading factor” 12% – according to the EU PVGIS database.

Actual volume is likely to be lower due to suboptimal placement – such as vertically on balconies – as well as orientation and shading.

A the report trade body Solar Power Europe noted that these factors can reduce 30-60% of optimal production. This analysis assumes a reduction of 45% from optimal output.

If the household can use 90% of the products – typical for such installations – then the panels will provide 400 kWh of electricity each year, which is enough to meet 15% of the typical demand.

This will vary depending on household usage patterns, but turning on appliances such as washing machines during peak daylight hours can improve capture rates.

This could save £110 a year on your electricity bill, meaning initial cost According to Carbon Brief’s analysis, around £500 could be recovered within 5 years.

Assuming the panels last 15 years, the total net savings over their lifetime could reach £1,100.

These savings assume a fixed unit cost of 27p/kWh predictions for July 2026.

When electricity prices got up to 34p/kWh over the long term – as it was in 2022 gas price crisis – then annual savings could increase to around £140, reducing the payback time even further.

If module costs fall over time as more vendors enter the market, this can reduce initial costs and payback time.

If 3 million households use connected solar – comparable to the current deployment in Germany – it will generate 1.2 terawatt hours (TWh), which is less than 1% UK demand.

​While this will not result in a significant reduction in emissions in the UK as a whole, it could still save households over £330 million in total and avoid around worth two tankers of imported liquefied natural gas (LNG) each year, according to an analysis by Carbon Brief.

Unlock participation

Beyond the economic benefits, plug-in solar can unlock participation in the clean energy transition for a wider percentage of the population.

For example, tenants stack around one third of UK households and the lack of control over the installation of rooftop solar and heat pumps. The solar panel will allow them to use and benefit from clean energy in their homes.

This spotlight was also published on Carbon Brief’s site.

HEATING HEADS: BBC Climate issue podcast spoke to two women from Sierra Leone and Mexico about their roles as “Chief Heating Officers” in their cities.

THE OYSTER IS EXTINCT: a feature in v Guardian investigated how sea warming is causing mass die-offs of Japanese oysters, threatening the shellfish trade.
Solar Switch: Climate home news explored how Nigerian homes and businesses are increasingly switching from backup generators to solar power.

• Grantham Climate Change Institute, research assistant | Salary: £49,017-£57,472 Location: London (Hybrid)
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