In the posts on this web site I write about the many options the world can use to move away from fossil fuels. I cover energy generation and efficiency both from technical and policy perspectives. I am an occasional investor in young companies with promising technologies. Sometimes I carry out consulting work for investment funds and private shareholders and speak at conferences and on radio.

Please contact me if you want me to speak at your conference or event, or have suggestions for topics I ought to cover. Feedback to anything published on this site is always welcome.


I send out a weekly email newsletter, attempting to get it into your inbox on Sunday evening. In it, I quickly summarise the blogs I have published during the previous week and comment briefly on the main items that have interested me during the last few days. In the interests of readability, I will usually be highly opinionated, even when the facts suggest a more nuanced reaction would be appropriate. I focus on finance and technology, not politics.

Addresses are stored properly (using MailChimp) and will only be used for this list. Access the archive of past issues.

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