Epstein Joslin Architects


There are many simple, cost-effective means to reduce energy use in buildings, mainly through lowering heating and cooling demands through:

  • natural ventilation paired with heat recovery systems
  • passive heating and cooling: storing heat/cold in thermal mass, maximizing glazing by orientation, solar shading in the summer months
  • geothermal heat pumps
  • landscaping (green roof as insulation & runoff reduction; deciduous trees as shading, windscreens)
  • increased insulation of wall cavities and roof
  • reducing air leaks and increasing insulation in older buildings
  • smaller building size

Other means to reduce energy use include:

  • onsite energy production
  • solar hot water heating
  • energy-efficient appliances
  • energy-efficient lighting fixtures, controls and natural daylighting

When various elements of the Building Sector are combined, such as industry to produce materials and transportation, the non-profit Architecture 2030 has found "the data from the US Energy Information Administration illustrates that buildings are responsible for almost half (48%) of all energy consumption and GHG emissions annually; globally the percentage is even greater. Seventy-six percent (76%) of all power plant-generated electricity is used just to operate buildings."

80 Trowbridge Street Cambridge, MA 02138 telephone: 617-868-1766 fax: 617-661-1148