The reduction in buildings emissions is well off track, not least in the residential sector. Something governments and millions of households are well aware of. The problem with replacing a gas boiler with a heat pump is the up-front cost and disruption. Installing the heat pump alone can cost several thousands more than replacing a gas boiler. On top of that, you should properly insulate your home and replace the radiators. Jovana Radulovic at … [Read more...]
Buildings Efficiency: cars have an âeco modeâ button. Why not our homes?
Households need the right tools to be able to take control of their real-time energy consumption, says Maximilian Auffhammer at the Energy Institute at Haas. Smart meters are just too crude. They donât tell you how much energy individual devices are using â fridges, ovens, heaters, EV chargers, TVs, lightbulbs, toasters, etc. You have to work it out yourself by switching devices on and off and seeing the difference. Auffhammer argues if you price … [Read more...]
Heating Households and Buildings: Heat Pumps will be up to three times cheaper than Green Hydrogen
A new study concludes that heating from 100% green-hydrogen would be up to three times more expensive than one based on 100% electrification of buildings with heat pumps. Josh Gabbatiss at Carbon Brief summarises the findings, who says itâs yet more evidence to push back against the voices of politicians and fossil-fuel companies wanting to see hydrogen in the household and buildings heating mix (for example, the UK is planning a âhydrogen … [Read more...]
Virtual Power Plants: efficiently networked households wonât need new expensive generation
Virtual Power Plants (VPPs) are the next new innovation that can change the landscape of the global energy transition in our favour, cheaply and fast, explain Liza Martin and Kevin Brehm at RMI. Essentially, they link and aggregate hundreds of thousands of households and businesses to manage their electrical devices. Their thermostats, EVs, appliances, batteries, and rooftop solar arrays are coordinated to ensure loads, charging and discharging … [Read more...]
Will turning down Europeâs thermostats ease the Gas supply crisis?
To counter the extremely high gas prices caused by the Russia-Ukraine crisis the IEA has proposed turning thermostats down in households to use less gas. The IEA estimated lowering the heating by just 1°C would reduce gas demand by around 10 bn cubic metres a year, or 7% of Europeâs annual imports from Russia. Aurore Julien at the University of East London looks at quantifiable past attempts around the world to get citizens to cut their energy … [Read more...]