All articles by Isabeau van Halm

Isabeau van Halm is a data journalist based in London. She has previously worked as editor of a local newspaper and is a graduate of the Erasmus Mundus Journalism Master’s. Contact Isabeau at: isabeau.vanhalm [at]

Isabeau van Halm


Moldova faces winter darkness as Russia weaponises energy

Russia is using energy supplies to destabilise Moldova, but separatist Kremlin-backed Transnistria might be hit the hardest if gas is cut off.

Weekly data: Renewable energy dominates climate finance

More than half of total global climate finance went to the energy sector in 2020. Governments should now support other sectors to drive up climate finance further, says the CPI.

Why the financial odds are stacked against developing countries

To reach global climate goals, and give developing countries access to affordable finance, an overhaul of the financial system is needed.

Denmark’s largest opposition party wants to sell part of Ørsted to finance climate plan

In the run-up to the Danish elections, the political party Venstre proposed to sell the state’s share in clean energy giant Ørsted to finance their climate plans, raising questions about critical infrastructure.

How indigenous communities became major players in Canada’s energy transition

Indigenous communities in Canada have been trailblazers in the clean energy transition, especially when it comes to microgrids in remote locations.

Weekly data: Hydrogen demand back to above pre-pandemic levels in 2021

Global hydrogen demand grew in 2021, but there are strides to be made in the production of renewable hydrogen.

Data insight: Heavy industry gains ground in Europe’s corporate renewable PPA market

While the ICT sector is still Europe’s corporate renewable PPA leader, heavy industry is starting to catch up.

Data insight: Spain leads the European corporate renewable PPA market

While prices in the rest of Europe are surging, Spain’s corporate renewable PPA offer remains stable, creating good opportunities for deals.

How Europe’s energy crisis has impacted corporate renewable PPAs

High energy prices have caused a surge in European power purchase agreement prices, but in the long term the deals could offer stability to the corporate power mix.

Weekly data: Japan eyes return to nuclear power

Japan’s nuclear turnaround could not only make the country less reliant on energy imports but could help with Europe’s energy crisis.