Classic blogs

• The Truth About Phone Chargers
• How much is inside hot water?
• A short chat on biofuels

Latest Blogs

The Sustainable Energy - without the hot air Blog. ..

• October 2014 - Powering Transport - some back-of-envelope calculations
• August 2014 - Shale gas in perspective
• June 2014 - 2014 Longitude Prize Water Challenge
• June 2014 - 2014 Longitude Prize Flight Challenge
• March 2014 - Reflections on the British Energy Challenge Roadshows
• February-March 2014 Crowd-sourcing the IET's 2050 Pathway
• March 2014 - "What Pause?"
• December 2013 - An update on turboprops, and a nomination for the Hot Air Oscar for the most misleading "green" infographic
• December 2013 - Do UK wind farms decline "very dramatically" with age?
• November 2013 - Enormous solar power stations
• October 2013 - Chinese translation of Sustainable Energy - without the hot air
• June 2013 - David MacKay's "Map of the world" - an update
• April 2013 - I've been unfair on Hydrogen
• December 2012 - L'énergie durable - pas que du vent! [French translation of SEWTHA]
• August 2012 - Personal energy calculator online
• July 2012 - Sun spots and temperature
• March 2012 - TEDx talk: People, Power, Area
• January 2012 - About Version 3 of DECC's 2050 Pathways Calculator
• March 2011 - Public debate about 2050 Pathways | Version 2 of the 2050 Calculator
• December 2010 - Downwind faster than the wind
• December 2010 - Science, Engineering and Technology Award for DECC 2050 Pathways Team
• November 2010 - Now available in Japanese! - "Sustainable Energy - without the hot air"
• October 2010 - Making numbers stick - desalination, melting, and boiling
• September 2010 - 'smart ways of seeing numbers' - the BBC like the 2050 Calculator!
• September 2010 - New Energy Future [video]
• August 2010 - nomination for the Hot Air Oscar for flagrant exploitation of gullible consumers The 'zero' charger's footprint (Hot Air Oscars nomination, greenwart)
• July 2010 - 2050 Calculator Tool at DECC
• 29 November 2009 - The Energy Game
• 1 Nov 2009 - How to boil water - the sequel
• 18 Oct 2009 - Challenged by Carbon
• 19 Sept 2009 - Regenerative braking works!
• August 29, 2009 - The carbon-neutral flexible friend - Hot Air Oscar nomination for Barclays
• August 29, 2009 - The future of energy
• August 28, 2009 Servants, LEGO, and Kindles
• August 1, 2009 A new graph, showing countries' power per unit area
• July 31, 2009 Air traffic visualized
• July 29 2009 - "Diluted" Carbon dioxide is "less harmful" - Hot Air Oscar nomination .
• July 29, 2009 Eco eco eco! And super-efficient too (Hot air oscar nomination for Todae)
• 27 July 2009 - Wouldn't it be better? No, I don't think so! (Hot Air Oscar nomination for RealTimeCarbon.com)
• 27 July 2009 - Table for one
• 26 July 2009 - Moon, and Age of Stupid [movie recommendations]
• 25 July 2009 - Where the wild things are
• July 22, 2009 - Two exciting things (DII and DWFTTW)
• July 19, 2009 - Most inaccurate numbers in a right-wing newspaper
• July 5, 2009 - Sustainable Energy Pirates
• July 3, 2009 - Sustainable Energy news
• June 28, 2009 - Visualizing wind farms for Cambridge University
• June 2009 - The one-percent rule, leading to patriotic thoughts about the Falklands
• How much can one drinks bottle achieve?
• Hot Air Oscars nomination: Easy Being Green
• Wind farm power per unit area data complete [link to data]
• "Better than BS 7671 : 2008 IEE Wiring Regulations 17th Edition!" [answering the question "how is the book selling?"]
• Oh no! Green electricity spat!
• Whitelee powers Glasgow (again!)
• Hot air Oscars nomination: 'Go Green'
• Is David MacKay "trying to make wind sound useless"? Let's look at more data
• Hot Air Oscars nomination: biodegradable tat from 'I love planet'
• Four simple actions
• Hot Air Oscars nomination: A Clean Use for Australian Coal
• Hot Air Oscars nomination: Eco Friendly Mobile Phone Charger
• Hot Air Oscars nomination: most useless invention (recovers useful energy from a drain pipe)
• Display energy certificates - a missed opportunity to communicate (also available at this webpage)
• Uncontrollable burning coal waste-heap
• Hot Air Oscars: Recyclemania
• Power per unit land area of windfarms | More windfarm power per unit area | Even more wind power per unit area
• Google searches and cups of tea
• Would electric freight vehicles be possible?
• The FCX Clarity from Honda
• Why on-site renewables don't add up
• Petrol, diesel, miles per gallon, litres per 100 km, energy, and emissions
• How to boil water
• Lights on cars in the daylight
• Performance data for a GWiz in London
• The last thing we should talk about (sucking carbon from thin air)
• How much hydro does it take to "power Glasgow"?
• Carbon carousel fraud
• A short chat on hydrogen
• The magic playing field of nuclear energy