Potential climate impact of retail CBDC models
Sveriges Riksbank published a paper that analyses central bank digital currency (CBDC) electricity consumption compared to existing retail payment services. Findings indicate that the energy use per transaction of an e-krona is comparable to that of card payments. However, there are significant differences depending on whether the design of the infrastructure for the e-krona is centralized or decentralized, where a centralized solution tend to be less energy consuming than a decentralized solution. Algorand’s proof-of-stake public-permissioned network was chosen to represent the decentralized platform, and Hedera’s private-permissioned network the centralized platform, and the transactions volumes were assumed to be similar to that of cash-based transactions. [Read more at the Riskbank]

Visa showcases tokenized deposits with HSBC, Hang Seng Bank (Ledger Insights)
Visa published a report on its tokenized deposit trial with HSBC and Hang Seng Bank, which involved (i) settling high value real estate transaction and (ii) settling Visa card payments. In Hong Kong there are restrictions on faster payment amounts, so the real estate transaction supported a high value instant payment with tokenized deposits. With tokenized deposits, when a payee transfers money to a recipient, the sending bank burns the tokens and the recipient bank mints them so they appear in the recipient’s wallet. Instant settlement is facilitated by wholesale CBDC, with the token and CBDC exchanges happening simultaneously, so there’s no settlement risk. [Read more at Visa]
Upcoming Speaking Engagements:
- CBDC Conference, Istanbul, September 10-12. The conference will offer representatives of central banks, commercial banks, technology providers, policy makers and academics the perfect platform to learn about the latest CBDC developments, exchange ideas with experts and peers. [Find out more and register here][Central bank delegates may be eligible for free registration (email registration@cbdc-conference.com to find out more)]
- Digital Currency Conference, London, September 23-24. The conference will bring together policymakers, regulators, and technology and innovation experts to network and discuss all aspects of digital currencies. And enter the KiffmeisterDCC code at registration to get a 20% discount! [Find out more and register here]
And just a reminder that I produce a monthly digest of central bank digital currency (CBDC) developments exclusively for the official sector. So (only) if you work at a central bank, ministry of finance or international financial institution (e.g., the BIS, IMF, OECD, World Bank) and who would like to receive it by email on the first business day of every month, please DM me on LinkedIn or email me at john@kiffmeister.com.

