Sustainability _ Increased energy efficiency

Primary energy, final energy, energy need... What is the difference?

• Energy need: the actual energy you need for a provided service, before the systems and equipment energy losses

• Final energy: the energy distributed and the bill that will be paid. It incorporates the losses due to the performance of the systems

• Primary energy: the raw energy bought at country or state level. It incorporates the energy losses due to energy transformation, production and transportation

What does energy-efficiency mean? 

• Using less energy to provide the same services (in buildings: heating, cooling, dehumidification and lighting)

• Energy-efficient buildings have reduced energy need independently of the energy and the equipment that will be chosen.

How to make a building energy-efficient?

• Promote a fabric-fist approach: ensure the building envelope is highly performing

• Limit needs for heating, cooling and lighting to the unavoidable minimum

• Use renewable and decarbonized sources to supply the needed energy

How to measure it?

• Key indicator: Demand for heating and/or cooling and/or dehumidification (kWh/m².yr according to local context and regulation)

How do we act?

Our solutions contributing to increased energy efficiency:

• Providing glazing to let the sun in or block it out

• Insulation to reduce heat loss and summer heat gains

• Insulation for water pipes and ventilation ducts

• Smart membranes to improve air tightness and moisture management

• Render to insulate and provide weather defense