What are the sources of investment and sources of finance in the energy sector? Cecilia Tam, Paul Grimal, Jeanne-Marie Hays and Haneul Kim at the IEA summarise insights extracted from the IEAās latest flagship World Energy Investment report which this year has dug much deeper into the subject. They look at the capital structure (debt versus equity) of energy investments in assets and companies. They look at the entities making the investments, … [Read more...]
Heat Pump + Gas Boiler hybrids can reduce bills and emissions faster than a 100% heat pump roll out
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 āeco modeā 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 donāt tell you how much energy individual devices are using ā 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 itās 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 āhydrogen … [Read more...]
Virtual Power Plants: efficiently networked households wonāt 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 Europeās 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 1Ā°C would reduce gas demand by around 10 bn cubic metres a year, or 7% of Europeās 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...]
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