On-site Combined Heat and Power (CHP), also known as Cogeneration and Trigeneration, offers twice the efficiency of electricity from the grid, while producing half the pollutants.
CHP can reduce energy costs by 40-50% and provide a reliable, independent source of power.
How it Works
A natural gas engine powers a generator, producing electrical energy.
Heat from the engine and exhaust is captured and made available for heating, and to drive absorption chillers for cooling and dehumidification.
This is done in a closed-loop process and monitored remotely 24/7.
Return On Investment: Because a CHP system takes the waste heat lost while burning fossil fuels and repurposes it in another process, you will see an increase in energy efficiency which directly correlates to the repurposed heat which would otherwise have been lost.
As illustrated, a typical electric generation facility will often see about 32% energy efficiency. 5% is lost during transmission and distribution, while the remaining 63% is wasted in cooling towers.4 By switching to a CHP unit, and utilizing the heat generated in your process, your facility can achieve an energy efficiency of over 80%.5
Grid outages and Storms: CHP is an excellent way to begin the process of isolating yourself from the grid. This is crucial for the continued operation of hospitals, nursing homes, stores, and other businesses during grid outages.
The Price of Energy
Electricity is proportionately more expensive than natural gas. If you generate your own electricity from natural gas and use the heat in your process, the combined cost of displaced electricity and displaced thermal, minus the cost of natural gas and maintenance for a CHP system, will turn out a substantial operational benefit per hour. On qualified projects, we typically see electrical energy costs at 5 times more than natural gas.
The Environmental Effects of Energy
On average, grid electricity loses 2 gallons of water per kWh consumed to evaporation in cooling towers and hydro dams. CHP applications without cooling towers have zero water loss to evaporation. This means that for every kWh of electricity consumed, you are saving the US 2 gallons of water.
Electric Grid Efficiency
On average, the US electrical grid consumes 100 units of fossil fuel energy in order to offer around 32 units of electrical energy for sale at an outlet. The 68 units lost go into the atmosphere as thermal energy (see illustration).
On-site CHP utilizes the thermal energy lost by the electric grid. Overall energy efficiency ends up in the range of 65% to 90%. This explains how CHP is at least twice as good as the grid. Because natural gas burns much cleaner than coal and with the increase in efficiency, on site CHP generation produces significantly less than half the pollutants per kWh than does the electric grid.
Reduction in energy costs
Reduction in energy waste
Reduction in CO2 Emissions
Interested in learning more about how CHP could work for you?
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