ENERQOS SpA is an Energy Service Company – ESCo – which offers innovative solutions to improve energy efficiency. Both the capital and operating costs required for the implementation of a project can be funded directly by ENERQOS, by sharing with customers the savings generated. In this way, the customer can start the project without any investment or initial expenditure.
ESCo, Energy Service Company, efficienza energetica, caldaie a biomassa, cogenerazione, biogas, energia, risparmio energetico, pompe di calore, biomassa, refrigerazione, costi energetici, fotovoltaico, tee, fonti rinnovabili, illuminazione, ottimizzazione energetica

Gas cogeneration

The sharp increase in energy costs have negatively impacted the profitability of companies with high electricity and heat consumption, such as hotels, hospitals, sports centres and production industries.

The installation of a high efficiency cogeneration system allows the joint and simultaneous production of electricity and heat, improving the efficiency of the fuel (natural gas or biogas).

Simultaneously producing electricity and recovering heat energy, from engine cooling water or oil and from exhaust gases, uses almost all of the energy potential of the fuel.

Enerqos’ proposal

  • Selection and implementation of a 50 kW cogeneration system on the basis of a detailed analysis of the electricity and heat consumption of the customer
  • Financial solution customized to the specific requirements of the customer
    • Financing through Enerqos and a sharing of the savings of electricity and heat consumption, with a maintenance contract for a period of 3 to 5 years
    • Co-investment by Enerqos and the customer and a sharing of savings, with a maintenance contract for a period of 3 to 5 years
    • Customer’s own investment with the option of a maintenance contract
  • Consulting regarding access to all possible incentives available at regional, national and European level

Benefits for the customer

  • Increase in the competiveness of the company through immediate reduction of the costs of electricity and heat consumption
  • Optimization of financial resources through access to different solutions, or qualified assistance in accessing credit, with no initial outlay
  • Technological solution customized to the needs of the client, with installation of the best cogeneration solutions available on the market without contractual ties to suppliers
  • Optimization of the various planning and operational phases with Enerqos’ proven experience of project-management
  • Medium to long term support from trusted and highly qualified partner
  • Improvement in the customer’s ‘green’ image

Case Study

Project information

SiteFood industry operating 3 shifts, 5 days a week, using in its production process steam,
hot water & electricity
Plant operation hours6,000 h
Reference electricity consumptiongrid supplied
Reference heat consumptionheat requirements satisfied by boiler with an efficiency of 85%
Annual consumption of electricity2,328 MWh
Annual consumption of heat energy2,700 MWh
Cost of electricity0.17 €/kWh
Cost of natural gas 0.38 €/Sm3
Annual cost of electricity395,800 €
Annual cost of natural gas125,800 €
Total energy cost521,600 €

Proposed solution

Plant type & power400 kW natural gas cogeneration plant
Engine typeotto cycle
Electrical efficiency38 %
Net electrical power388 kW
Steam thermal power200 kW
Hot water thermal power250 kW
Purchase cost of natural gas243,800 €
Management and maintenance costs70,000 €
Excise duty on electricity produced27,900 €
Estimated total annual energy costs341,700 €

Benefits of installation of the cogeneration system:


Saving Rate

per year


Savings in the first year in €

Priority areas

  • Industries with stable, significant and continuous demand / consumption of electricity and heat
  • Hotels, spas, swimming pools
  • Hospitals and care homes