SEER stands for Seasonal Energy Efficiency Ratio and is a term used in air conditioning to compare units for their energy efficiency when heating or cooling over an entire year. The measure is driven by the EU’s Energy Related Products (ErP) Directive (the Eco-design Directive) which specifies the minimum Eco-design requirements that manufacturers must integrate into their energy-using products. The new measures reflect a devices true energy consumption as they measure energy efficiency over a complete year including temperature fluctuations and standby periods.
