What is energy saving?
Energy saving is the reduction of energy consumption in a home or building without compromising comfort. It is achieved through better insulation, more efficient systems, smarter controls and more conscious use.
Why save energy?
- Lower energy bills — less gas and electricity consumption
- Lower CO₂ emissions — reduced climate impact
- Higher living comfort — no cold bridges, fewer draughts
- Higher property value — energy-efficient homes sell better
- Better energy label — required at sale and rental
Applications
Building measures
- Roof insulation — saves 10–20% of gas use
- Floor insulation — for timber floors or crawl spaces
- Facade and cavity wall insulation — easy to retrofit in older homes
- HR++ or triple glazing — reduces heat loss through windows
- Airtightness — prevents unwanted air leakage
System measures
- Condensing boiler or heat pump — more efficient heating
- Underfloor heating — lower water temperature than radiators
- Solar panels — generate your own electricity
- Solar thermal water heater — for hot tap water
- Balanced ventilation with heat recovery — reuse warmth from outgoing air
- LED lighting — up to 80% less power than incandescent bulbs
Behavioural measures
- Thermostat 1 °C lower
- Shorter showers
- Switch off rather than standby
- Wash at lower temperatures
Incentives and schemes
Many countries offer financial incentives for energy efficiency:
- Subsidies for heat pumps, insulation, solar panels
- Low-interest energy loans
- Reduced VAT on certain energy-efficient products
- Local schemes that vary by region
Related terms
- Insulation
- Energy label
- NZEB
- Heat pump
- Sustainable construction
Want to learn more about construction terms? Visit our knowledge base at fredsdiyplans.com.