What an A Energy Rating Means and Why to Look for It in Your Next Home
More and more buyers ask about the energy rating before they even ask about the floor plan. It’s not a fad — it has a direct, measurable impact on monthly running costs and on the property’s future value.
What the energy performance certificate is
It’s a mandatory document that assesses a property’s energy consumption and rates it on a scale from A (most efficient) to G (least efficient), based on factors like insulation, heating and cooling systems, exterior joinery and the energy sources used.
What it takes to reach an A rating
- High-performance thermal insulation in walls, roofs and window frames.
- Low-consumption climate systems, such as air-source heat pumps.
- Solar photovoltaic installations for self-consumption, increasingly standard in new builds.
- Home automation to manage energy use efficiently.
- Orientation and architectural design built to make the most of natural light and minimise the need for artificial climate control.
Real savings on your bills
An A-rated property can deliver substantial savings on cooling costs compared with an E-rated home or lower — particularly relevant on the Costa Blanca, where air conditioning runs for months at a time in summer.
Impact on resale value
With growing awareness of energy consumption — for both financial and environmental reasons — well-rated properties tend to hold their value better on the resale market and are more attractive to international buyers, especially from Northern Europe, where energy efficiency is a top purchase criterion.
What to ask before buying
If you’re considering a new-build home, always request the project’s provisional energy certificate and ask specifically about the climate-control system, insulation and whether it includes solar panels. For a resale property, request the current energy certificate before signing any reservation.
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