Sustainable from the Ground Up

Sustainable building is the practice of increasing the energy efficiency of a structure, using sustainable materials in its construction, and managing waste responsibly in building and operation.

Sustainable building also takes the environment into consideration. These projects are designed to have the least possible impact on the ecosystems surrounding the building.  This is accomplished by careful site selection and design, consideration of the plants and animals that make their home there, and mindful construction that minimizes runoff and other impact to the environment.

Sustainable building can increase short-term costs, but will maximize long-term value. These practices can reduce operation costs through energy efficiency, increase the health and wellbeing of its occupants (which can increase value) and reduce environmental impact.

A Master in Sustainable Building

ACCIONA is a pioneer in the construction of energy efficient buildings that optimize comfort and livability.

ACCIONA Energy built the first certified “zero emissions” building in Spain, meaning it covers all its energy needs without emitting any greenhouse gases. The building is ACCIONA Solar’s headquarters in Navarre, Spain. It consumes 52 percent less energy than a conventional building of the same characteristics and the remainder is covered by renewable energy sources. This prevents over 127 tons of CO2 emissions per year.

• The climate control and lighting installations feature sophisticated energy efficiency solutions, such as light intensity regulators, presence detectors, radiant floors and ceilings and intelligent temperature controls.
• The photovoltaic solar installations - 48.3 kW on the façade and roof connect to the grid - and thermal solar installations - 110 kW on the roof - cover 89 percent of the total consumption. The remaining 11 percent is provided using biodiesel produced by ACCIONA itself.
• The building also has a geothermal system which takes advantage of the temperature difference between the subsoil and the exterior to provide cold or warm air, whichever is necessary.

The additional cost of these energy efficient systems is offset by the savings in energy bills, which are appreciable within a much shorter time than the useful life of the building.

"Zero emissions" building video