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On using solar & batteries to provide 90% of the world population with 90% of their electricity demand for below 90 €/MWh
I came across this wild stat today, from an energy modelling friend, Tom Brown, who had another modeller refine it to provide the 90/90/90 framing, that I want more people to know about. Basically, at at 2030 prices, solar and batteries can provide 90% of the world population with 90% of their electricity demand for…
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How to use GenAI models if you care about the energy they consume
This is (was?) a short post, to collate some of the work I’ve been doing over the last few months, to better understand the environmental footprint of using various generative AI tools, particularly for coding. I’ve already written a little about the tension between AI the tool and AI the project – generative AI is…
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If 24/7 clean energy matching is good for the company buying it, is it good for anyone else too?
I’m jotting this down because I made an abortive attempt to write a blog post about this property of 24/7 fossil free / carbon free energy a couple of months ago, and I was hunting around for the draft for quite a while before realising that I must have deleted it or lost it somewhere.…
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Is this EnergyNet thing legit?
The other week I learned about the existence of the EnergyNet project. It’s essentially a project to, in the words of David Roberts in a recent podcast, “Make the electricity grid work like the internet”. I’m jotting a few notes here for others as it took a bit of searching to find them, and having…
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How I think of decarbonising the energy used by datacentres on the grid
At work, we’re rethinking how we represent the steps organisations take to transition away from fossil fuels powering the datacentres they use. One thing making it more complicated is that the current way of recognising people using clean energy has all kinds of issues, so there is a new, more rigourous approach being developed. These…
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Takeaways, trends and notes from Green IO Paris 2025
I just got back to Berlin tonight after being at Green IO, a conference in Paris in its third year, that is dedicated to the fields of digital sustainability and Green IT. Before I forget, I figure it’s worth sharing a few takeaways from sifting through about a bajillion pics of slides, and all notes…
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Wow tech firms STILL need to report their revenue from oil and gas sector, even after reporting standards have been ‘simplified’?
In Europe, I’ve been tracking the passage of a set of reporting standards that a significant law, the Corporate Sustainability Reporting Directive (CSRD) uses to layout precisely what a information large companies have to disclose. Even after an effort to gut reporting laws, it looks like companies STILL have to report their revenue from the…
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Are the big hyperscalers reporting power consumption in Germany like the laws say they’re supposed to?
I noticed something recently that I can’t find an clear explanation for, so I’m posting it here to help understand what’s going on. In the European Union, there is a sort of law called the Energy Efficiency Directive, which I’ve written about before, and this relevant when we think about data centres and decarbonising the…
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Default to calling it ‘carbon pollution’, not ‘carbon emissions’, when talking about climate change
I’ve heard a few people use this specific framing of greenhouse gas emissions when talking about climate change, but it hasn’t become a real habit for me. This is a quick note for me to refer back to later. There is a now lots and lots of peer reviewed research, and advice from communications professionals…
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Can you phase out oil and gas in the UK with CFDs at 14 GBP per MWh?
This is a quick note, because a report I was keeping an eye out for is now in the public domain. As I understand it, it was commissioned by Dale Vince of Ecotricity, and presented at the UK Labour party in September, and lays out a ‘mid-transition’ argument for effectively bailing out oil and gas…