The church used it to keep their assembly cool.
Farmers use it to prevent milk from spoiling.
Heat storage or ice-
Experts say that for air-conditioning purposes, the newer system may provide non-
The current energy bill for residents is likely to fall by 25%.
These four systems, recently in two
Daytime thermal energy storage workshop in San Diego, including ice
Ice-making harvesters in containers lined with large steel plates, crystal-like salt tanks that allow water to freeze at 47 degrees Fahrenheit, a gas hydrate solution that freezes at 48 degrees Fahrenheit, and an air
An exciting ice builder who built ice on a pipeline, similar to the ice used in churches and farms 40 years ago.
In the night-time ice-making system, when the electricity bill is the lowest, ice-making is made at night using the existing air conditioner of the building.
Doug Goodman said that with the melting of ice, chilled water was then used to run air conditioners during the day with the highest utility cost, energy load project director at San Diego Gas and Power
Promoters of these products say that the cost of these systems ranges from $35,000 to $1 million, depending on the size of the building and the work required to transform the system into an existing air conditioner.
But Goodman says the new system will pay for itself in three years.
Currently, non 35,000
Residential customers across San Diego pay $7 for demand. 31 per kilowatt
Power hours consumed during peak hours between 10. m. and 6 p. m. , Goodman said. Peak-
The cost of hourly power is six times the rate of shutdown
Peak Energy for no demand charge.
Additional incentives for SDG & E;
Customers will be allowed to earn up to $2. 50 per kilowatt
He said it would take an hour to store heat at night.
"There will be considerable savings for our customers," Goodman said . "
"This will help to delay the need to build more power plants.
We hope to be able to serve more customers with the same number of factories. "SDG&E;
In the past, officials feared that some larger industrial customers would look for their own energy to avoid high electricity bills.
Savings from off-
Peak usage can convince these big users to continue using SDG & E;
Officials believe.
Because the overhead of large utility companies is paid by residential and industrial customers, SDG & E;
Officials believe that if big users abandon SDG & E,
With the development of the energy system, residential customers will face higher prices.
Jeffrey D said that the national tax benefits are different from the 25% tax benefits for systems costing more than $6,000 and the 35% tax benefits for systems costing less than $6,000.
Is a member of the California Energy Committee.
The manufacturer says the housing system is not cost
Effective, give a 35% tax credit of up to $1,500.
In addition to rising power costs, thermal energy storage is the only viable alternative, Commons said.
For example, building a new energy plant in California now costs about $14 billion, he said.
Commons said that electricity prices rise with peak-time consumption and that if they are not controlled, more power plants will need to be built.
"Our goal is to control interest rates.
"With thermal energy storage, the state can avoid buying," Commons said --of-
Mainly from state hydropower in the Northwest, California utilities sometimes buy at twice the price of local market figures.
John Johansson, a financier who focuses on thermal energy storage systems, called cooling systems a "smart" investment, but said certain risks must be considered.
"Now the system is maturing and the new technology has not been proven in operation for more than five years," Johansson said . ".
Other considerations, Johnson said, include a possible change in the price of electricity at night, and other cheaper alternatives that may emerge in the coming years.
But he said the current system is "simple and stable ". "Victor J.
Ott, vice president of thermal energy storage
Santiago said that various incentives provided by SDG & E;
The national tax credit will give his company about 1% to 2% of the estimated $8. 5-
By 2000, the market potential reached one billion. Roy E.
Hobbs, director of engineering at the Charity Hospital and Medical Center, said the hospital's frozen equipment
Water storage system--a 220,000-
Gallon tank buried under the Park--
There's always a problem.
It's free since it was installed three years ago.
The hospital is estimated to save 1985 Energy, nearly $42,000, according to Hobbs.
In the $144,800 system, cooling a-137, 000square-foot, three-
Hobbs said the story flow Service Center paid for itself in just two years.
Our initial salary
It is estimated that 8 is behind.
9 years, but it turns out that the efficiency of the system has increased by 25% to 40% (
Than traditional air conditioning)
"We avoided a lot of spending," he said . "