Sustainability is one of the great topics in construction, and the new regulatory systems bring zero energy buildings (ZEB) and nearly zero-energy buildings (NZEB) to the table.  The growing worldwide demand for energy and significant environmental issues such as climate change, natural resource conservation, pollution, ecology, and population has consequently forced ZEBs and NZEBs to emerge in the construction sector.

AEDAS Homes works to create nearly zero-energy buildings (NZEB)

At REBUILD, Diego Demaría, AEDAS Homes Installations Manager, took part in the meeting entitled “The role of gas and heating/cooling within the circular economy”, together with Martí Colomer, of ACV España.

Both speakers discussed the efficient functioning of a built-up space, which depend both on the materials used in its construction and on the type of energy and equipment selected. Diego Demaría underlined the endeavour being made at AEDAS Homes in favour of energy sustainability, employing existing certifications like the BREEAM seal or adherence to the guidelines in the Green Paper published by the company to foster energy performance in all its developments.

According to Demaría, these steps have enabled the company to “pre-empt the new technical code which is about to come into force and mean we are now working towards achieving nearly zero-energy buildings, compliant with the draft of the new Technical Building Code.”

The AEDAS Homes Installations Manager went over the different types of energy involved from generation through to final consumption: “Customers don’t pay for the useful energy they demand but rather for the final energy they consume, which is determined by the efficiency of the equipment and systems selected in the design stage. It is there that the work must be put in.”

Regarding the use of gas, given that the equipment using this energy source performs less efficiently than today’s heat pumps, Diego Demaría advocated for the use of aerothermal systems as one of the main strategies of today and in the future. “Renewable gas may be its great hope versus working on electricity; gas which is obtained from organic, livestock and agricultural waste, contributing to a circular economy and the transition towards reducing our dependence on carbon-based fuels and lowering greenhouse gas production.”