What is CHP?

Combined Heat and Power (CHP), a suite of technologies, is an efficient; integrated; cost-effective and SMART approach to generate on-site electricity and thermal energy from a single fuel source. In USA, CHP Systems are commercially operational since 1929 and a variety of fuels are being used to generate electricity.  

Five major modules of CHP system:

  1.     Electricity Generation

  2.    Electricity Distribution (Site / Grid)

  3.    Heat Recovery

  4.   Heat Distribution to Site

  5.    Trigeneration (CHP Heat can also be used to Generate / Distribute Cooling)

CHP also provide opportunities to use Renewable Fuels. For example, Wastewater Treatment Facilities - (WTF) are  ideal for developing CHP systems as they use the waste heat on-site to warm the Digesters and export excess renewable electricity to the grid. Other potential bioenergy sites that could use CHP include Dairies and Food Processing Plants. 

CHP end-users include Industrial Plants; Hospitals; Hotels; Large Commercial & Government Buildings, Apartment Complexes, Universities; Schools etc.

Turnkey Solution

AMCO-MRC can provide turnkey solutions for 2.7 MW to 48 MW CHP Systems including ongoing Specialized Training; Support and Project Financing for Qualified Clients, in accordance with Law of the Land; SBA, EXIM Bank USA, World Bank and International Chamber of Commerce guidelines.

A well-designed CHP system consume less fuel than would be required to obtain electricity and thermal energy, separately. For optimal efficiency, CHP systems typically are designed and sized to meet the thermal baseload demand. 

CHP captures energy that would normally be lost in electricity generation and uses the same waste energy to provide heating and/or cooling, making CHP systems 75 - 80 percent Efficient. Whereas, the conventional method of producing usable heat and electricity, separately, has a typical combined efficiency of 35 - 45 percent. 

CHP has the added benefit of avoiding efficiency losses incurred through transmission and distribution of electricity through the National Grid and local distribution networks. Around 7% of energy would usually be lost when the network is used to transport energy from the generation source to the user.

The Process

CHP’s efficiency comes from recovering the heat that would normally be wasted while generating power to supply the heating and/or cooling needs. By capturing and utilizing waste heat, CHP requires less fuel than equivalent separate heat and power systems to produce the same amount of energy services. 

CHP also decreases demand on the electricity delivery system, reduces line-losses and reliance on traditional energy supplies, reduces greenhouse gas emissions, decreases CAPEX and OPEX and allows infrastructure investments towards District Energy Systems.

Case Study Quick Facts

48 MW CHP in Operation since 2010

LOCATION: Texas Medical Center Houston, Texas USA 

MARKET SECTOR: Healthcare / FACILITY SIZE: 19.3 million square feet  

PEAK LOAD: 60 megawatts (MW) / CORE EQUIPMENT: 48 MW turbine (GE LM 6000) with HRSG and steam-driven chillers  

FUEL: Natural Gas / USE OF THERMAL ENERGY: Steam-driven chillers, space heating, hot water, dehumidification, and sterilization  

ENVIRONMENTAL BENEFITS: Reduces CO2 emissions by 305,000 tons/yr

FINANCIAL BENEFITS: Yearly Energy Savings: $6-12 million 

Source: EPA

Wastewater Treatment Facilities (WTF) - in which a combination of various processes (e.g., physical, chemical and biological) are used to treat industrial wastewater and remove pollutants -  are ideal for developing CHP systems as they use the waste heat on-site to warm the Digesters and export excess renewable electricity to the grid. 

Case Studies:

Bellow CHP Plant overview, using Renewable Fuels, close to Wastewater Treatment Facilities

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