Consider the Environment When Designing CBDCs, IMF Urges

Central banks should steer clear of proof-of-work protocols, the international institution says

article-image

Kristalina Georgieva, managing director of the International Monetary Fund | Source: Shutterstock

share
  • IMF report suggests countries, crypto infrastructure providers move away from proof-of-work-based CBDCs
  • CBDCs should be better for the environment than existing systems, analysts said

A new study from the International Monetary Fund urges countries looking to develop CBDCs to consider energy consumption when making their design choices.

Central banks should “design CBDCs [central bank digital currencies] with the explicit goal to be environmentally friendly,” the IMF said in the report. The payments system broadly, including central banks’ legacy systems, uses a large amount of energy, and moving toward renewables across the entire financial sector should be the goal, IMF analysts added. 

“What we are seeing now is a broader realization that if CBDC is going to be an infrastructure, it has to be better than the one we have,” Carmelle Cadet, CEO of CBDC infrastructure provider EMTECH, said. “In addition to processing payments faster, with easier traceability and trust, CBDC has to be energy efficient.” 

“Major cloud service providers are shifting toward renewable sources of energy such as geothermal and hydropower, as well as toward locations with colder climates, to reduce the carbon footprint in generating power,” the report read. “Adding the environmental footprint as a selection criterion of a cloud partner can benefit not only the CBDC project, but also any future digitization project of a central bank.” 

The IMF also recommends that countries and crypto companies move away from energy-intensive proof-of-work protocols, a suggestion some say could impact user experience. 

“Different protocols focus on various priorities…you have trade-offs that might not align to energy efficiency,” Cadet said.

The report comes as more nations, particularly developing countries, make strides toward launching their own CBDCs, which advocates say can drastically improve the lives of those living in predominantly cash-driven societies. 

“Providing a cash-like digital means of payment, in light of reduced cash usage and an increase in private digital payment services, is the most common consideration [for developing a CBDC],” a recent report from the Bank for International Settlements said. “Other significant considerations include strengthening competition among payment service providers (PSPs), increasing efficiency and reducing the costs of financial services.” 

Jamaica has already approved its upcoming CBDC as legal tender in the nation. Brazil, Nigeria and Haiti are among the jurisdictions exploring the establishment or expansion of CBDCs. The Central Bank of the Bahamas’ Sand Dollar became the world’s first CBDC in 2020.

With environmental, social and governance-focused investing and climate change at the front of many minds, it is not a surprise that the IMF is choosing to focus on how digital assets impact the environment, according to another CBDC expert. 

“Central banks are thinking about energy, and they should be thinking about energy,” said Jonathan Dharmapalan, CEO of eCurrency, which provides technology for central banks to issue and distribute CBDCs. “Energy efficiency is not just about how to do this with digital currency, it is also about the lack of energy efficiency and moving physical currency, which is also an issue.”

Correction: An earlier version of this story featured an image of Christine Lagarde, who was the Managing Director of the IMF until 2019 when she became the President of the European Central Bank.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Hilton Park Lane

Tues - Wed, November 10 - 11, 2026

DAS London is a two-day summit at the Hilton Park Lane in London featuring conversations between the builders, allocators, and policy makers who are shaping the trajectory of the digital asset ecosystem in the UK, Europe, and North America.

Marina Bay Sands Singapore

Wednesday, October 07, 2026

DAS Asia is a a single-day summit at Marina Bay Sands Singapore featuring conversations between the builders, investors, and global leaders are shaping the trajectory of the digital asset ecosystem in Asia & North America.

recent research

Hyperliquid Purple (4).jpg

Research

HIP-3 has successfully scaled market creation on Hyperliquid, but it has not yet created a sustainable competitive deployer layer. Growth mode, USDH depreciation, high auction costs, and the 500K HYPE stake have made the model increasingly difficult for non-TradeXYZ deployers, leaving market creation concentrated around one clear outlier. We look at why deployer participation has slowed, what that means for HIP-3’s long-term design, and how tiered exchanges or temporary auction-fee relief could make smaller and more niche markets economically viable.

Newsletter

The Breakdown

Decoding crypto and the markets. Daily, with Byron Gilliam.

Blockworks Research

Unlock crypto's most powerful research platform.

Our research packs a punch and gives you actionable takeaways for each topic.

SubscribeGet in touch

Blockworks Inc.

133 W 19th St., New York, NY 10011

Blockworks Network

NewsPodcastsNewslettersEventsRoundtablesAnalytics