Watt Direction
Ed HezletQuestioning the UK's approach to energy
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 23 | Subscribers | Read | wattdirection.substack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
What is the Point of the GB Electricity System?
N.B. - this was first posted on the 1st of February 2026. I have edited it in response to reader feedback (8th of February 2026) Briefly, within the transmission charging regime there are some sizeable charges for localised transmission inf...
Pumped Storage Hydroelectricity
I have had a soft spot for storing electricity by pumping water uphill ever since I first read Sir David J.C. Mackay’s wonderful book - “Sustainable Energy - Without the Hot Air”. Mackay went through the maths behind the four UK pumped hydr...
Energy and the 2025 Budget
I’m conscious the Substack posts have been sparse of late, so I thought I would comment on the domestic energy cost measures announced in the 2025 budget.
11 Charts from DUKES 2025
DUKES is an acronym - Digest of United Kingdom Energy Statistics. It’s an annual publication from the Department for Energy Security and Net Zero (DESNZ) and the 2025 edition was released at the end of July 2025. As well as the report itsel...
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