Heat pumps are one of the most consistent forms of year-round renewable energy because they’re less affected by seasonal changes. In particular, a ground source heat pump works by using the unchanging ground temperature a metre below your garden. It then absorbs this latent heat and transports the warmth into your home.
Choosing between a ground and air source heat pump depends on your property, and on what is most effective for your situation. The difference you’ll experience will be in the speed with which the heat pump will be able to warm your home. An air source heat pump draws the heat straight out of the air outside your home – a process that it specifies can function up to -25C (3), far beyond anything you’ll encounter in the British winter. In the middle of winter, when the temperature passing through your ASHP is in the low single digits, the ambient ground temperature averages between 12.7 degrees in Southern England, and 8.8 degrees in Northern Scotland. As this will be warmer than the air temperature, a GSHP is able to collect more heat, more quickly, to send to your home than the Air Source equivalent.
Is the energy crisis here to stay?
No doubt, this energy crisis will pass in time as energy suppliers make fresh provisions to deal with the increased demand by final consumers. Moving forward, it’s likely that there will again be periods of energy scarcity that lead to increase energy prices – but these will also pass. However, by investing in domestic renewable energy, you can prevent these from having a significant effect on your energy spending.
Additionally, the UK government is bringing in the Boiler Upgrade Scheme to help fund a switch to renewables – to learn more about this scheme, click here.