Energy Efficiency Services Limited
Most households in India are cooled by fans, and less than 10% of households have air conditioning. The average rating of the fans installed and sold in the market is between 75-80W, whereas energy efficient fans provide the same level of comfort at about 45-50W. Considering that almost 30 million fans are sold every year, the potential to reduce demand is significant. Replacing the country's 35 crore inefficient ceiling fans in with BEE 5-Star-rated ceiling fans could save 47 billion KWh and reduce load by over 12,250 MW.
Energy conservation in the United States
As furnace efficiency gets higher, appropriate matching of equipment size to distribution system capacity and building load becomes more critical to optimizing equipment ability to maximize efficient operation. Installing much lower output high-efficiency replacement equipment offers opportunity for comfort and savings gains, but improving the building envelope through air sealing and adding more insulation, advanced windows, etc., should be explored concurrently or before replacement equipment design stage. The passive house approach produces superinsulated buildings that approach zero net energy consumption. Improving the building envelope can also be cheaper than replacing a furnace or air conditioner.