Off-peak air conditioning systems will soon be coming to a home near you. Off-peak systems have been saving companies a lot of money for years by reducing energy costs and have proven their effectiveness. Leading air conditioning companies are producing residential units that can be added to your existing system. Take our quiz now to see if you are ready to cool off with off-peak air conditioning.
Who invented the air conditioner?
The first air conditioner was invented by a man named Willis Carrier in 1902. He invented it to reduce heat and humidity causing smudged pages at a printing plant.
How does off-peak air conditioning help utilities enough for them to create attractive rates to offer during off-peak hours?
Government forced utilities to offer off-peak discounts to businesses.
Even with lower rates, off-peak air conditioning saves money for utilities.
In spite of lower rates attached to off-peak electricity, utilities still make money because they can reduce use of more expensive peak electricity and defer capital costs associated with increasing capacity. There is an excess of power available late at night because almost everyone is in bed.
What do utilities have to do in order to provide enough electricity during peak demand periods?
Utilities have to design their systems so capacity always exceeds demand.
Utilities are forced to buy expensive power off the grid to cover peak demand.
Utilities are forced to buy expensive power off the grid in order to cover peak demand. Even worse is that some utilities activate older generating facilities during the day to cover extra demand even though these plants generate more pollution.
Utilities have plenty of capacity and use peak demand periods to make more profit.
How can distributing energy usage over the entire day help utilities and our environment?
Moving automated tasks and air conditioning to off-peak hours reduces the need for more generating facilities.
Moving automated tasks like laundry, dishwashers and air conditioning to off-peak hours reduces the need for more generating facilities. Fewer generating facilities using fossil fuels equals a better environment.
Utilities can reduce their use of fossil fuels to generate electricity therefore increasing profits.
Spreading energy use through the entire day helps keep energy jobs in the state that you live in.
What is another common name used for off-peak cooling systems?
air-cooled chiller system
thermal energy storage system
Off-peak cooling systems are also referred to as thermal energy storage (TES) systems. Until recently TES systems were only available for large institutions but newer technology has allowed smaller systems with high operating efficiency.
What factor do off-peak systems depend on to make them economically viable?
cooler temperatures at night
attractive off-peak energy rates
Off-peak air conditioning systems take advantage of the electric utilities pricing structure to make them a viable alternative. With the cost of bringing more energy generation on line, this pricing structure is unlikely to change in the foreseeable future.
How much peak energy can a typical off-peak system save if it is incorporated into an existing air conditioning system in a large residential application?
a 95 percent reduction
According to Ice Energy, their Ice Bear 50 system can save up to 95 percent off your peak energy demand when integrated with your existing system. The down side in the economics is the $4,000 to $18,000 price tag for an Ice Bear system.
What percent reduction in peak cooling demand was achieved by the Night Sky Project?
50 to 90 percent
The Night Sky Project developed a roof-mounted system using water that was spray-cooled by the night air and stored in a tank for peak period cooling. Analysis of five test systems resulted in a 50 to 90 percent reduction in peak cooling demand.