About Gas Cooling

Natural Gas Offers Climate-Friendly Solutions

Natural gas provides nearly half of all energy consumed in the residential and commercial sectors, yet consumption in these sectors accounts for less than 6% of total U.S. greenhouse gas emissions. The lowest carbon-emitting fossil fuel, natural gas emits 45% less CO2 than coal and 30% less CO2 than fuel oil.

• About 90% of the natural gas produced is delivered to customers as useable energy. In contrast, only about 27% of the energy converted to electricity reaches customers.

(From 4/22/08 American Gas Association)

We all are familiar with natural gas as a source of heat for warming a building. But, natural gas is also used efficiently to provide cooling and refrigeration.

Basic Types of Gas Cooling

Absorption - (single and double effect) uses a cycle of condensation and evaporation to produce a cooling effect.

• Can produce both chilled and hot water
• Ability to recover waste heat
• Eliminates electrical demand charges
• Requires a smaller electrical service
• Chlorofluorocarbon (CFC) free
• Delivers significant California Title 24 Time Dependent Valuation (TDV) advantages for new construction energy budgets

Engine-Driven Chillers - very similar in principal to electric motor-driven chillers except no electrical power is used for the engine.

• Uses conventional vapor compression cycle
• Ability to recover waste heat
• Eliminates electrical demand charges
• Requires a smaller electrical service
• Delivers significant California Title 24 Time Dependent Valuation (TDV) advantages for new construction energy budgets

Example: California Time Dependent Valuation

Hybrid HVAC systems that utilize different energy sources to take advantage of the best technology and favorable energy pricing during 24-hour, 365-day-a-year operations, are available. Chiller plants with gas/electric combinations are the most common.

Process Applications

Commercial and industrial refrigeration has been supplied by natural gas equipment for many years. This equipment offers economic benefits through its electric peak-saving capabilities. Dairies, breweries, wineries, meat processors, green houses, cold storage, and ice producers are but a few of the applications using natural refrigeration.

Natural Gas. It's clean. It's efficient. And it's time to update.

The CoolGas Program is making it easier than ever to cool down with gas when it's heating up outside.

The CoolGas Program is funded by California utility customers and is administered by SDG&E™ under the auspices of the California Public Utilities Commission through a contract awarded to Cypress, Ltd. California customers who choose to participate in this program are not obligated to purchase any additional services offered by contractors.