Urban energy regulations
Introduction
An energy efficient building is one that minimizes the use of conventional energy, particularly non-renewable energy, in order to save and make rational use of it. Energy efficiency or energy performance arises from the ratio between the useful energy or used by a system and the total energy consumed:.
It is necessary to establish a criterion to define the total energy. To the extent that energy consumption per unit of product produced or service provided is increasingly lower, energy efficiency increases. Both the available technology and responsible habits make lower energy consumption possible, improving the competitiveness of companies and the quality of life.
Strategies to achieve energy efficiency
This is achieved through a series of strategies:
• - Thermal insulation in the envelope (walls, ceilings and windows).
• - Reduction of heat losses due to infiltration in winter.
• - Adequate orientation of the building[1].
• - Allow the sun to enter in winter
- Avoid shadows cast by other buildings.
• - Avoid sunlight in summer
- Design sun protection (fixed, mobile, natural).
• - Use efficient heating and air conditioning systems (energy labeling").
• - Energy savings in domestic hot water.
• - On rooftops, as a rule, double the thickness of the thermal insulation and seek to incorporate elements that provide shade.
• - Use efficient lighting through the use of low consumption lamps.
• - Modernization of the building's energy installations and improvement of its energy rating.[2].
Energy efficiency standards and codes
Contenido
En los años ´70 cuando ocurrió la primera gran crisis del petróleo la mayoría de los países desarrollados establecieron un control de la eficiencia energética edilicia, en particular Suecia, Alemania, Inglaterra y Francia. Estos además implementaron políticas activas para el ahorro de energía en edificios.