Zero Energy Buildings

4755 Words Sep 12th, 2013 20 Pages

As the energy consumption, industrial production and automobile usage around the world increases gradually, the efforts to meet the steadily increasing energy demand would leave the environment devastated. Traditional buildings consume as much as 40% of the primary energy consumed worldwide and are major contributors for greenhouse gases. Hence, with the intention of reducing the energy usage which reduces the environmental pollution energy efficient measures have been introduced. The goal of these measures is to decrease the energy use of the building substantially and provide the building's energy needs with on-site
…show more content…
The increase in CO2 emissions corresponded with increased energy use by an expanding population and economy, and an overall energy consumption related emissions between 1990 and 2011. A 1.5% increase is expected in emissions from 2005-2010.

Fig 1: Energy-related Carbon Dioxide Emissions, 1990-2011 As per AEO2013 Early Release Overview by EIA, the industrial coal CO2 emissions in 2013 are 48 million metric tons lower than those by 2035 ,the industrial natural gas emissions are 67 million metric tons higher by 2035 and the electricity-related emissions allocated to industrial sector are 67 million metric tons higher by 2035. The industrial emissions are expected to grow at a rate of 0.3 percent annually over the projection period from 2011 to 2040. In 2009, 74% of the electricity produced in the United States came from fossil fuels of which 54% was generated by combustion of coal. Many scientists and engineers have been working towards making energy production more environment friendly. While power generation technologies are examined and improved with regards to carbon dioxide emission, a major push to examine how to reduce the amount of power that utilities of a building must use lead to energy conservation which further lead to energy efficiency. Using energy efficient techniques instead of what is done traditionally reduces the total energy consumption of the building. The rest of