Feasibility study of the Energy Efficiency Projects, Energy Audit

The «ARNICA-Centre» Company carries out the package of work on executing energy audits and development of feasibility studies of energy efficiency projects at industrial, municipal, agricultural enterprises and buildings.

Full energy audit of the enterprise includes:

1. Drawing up and analysis of the enterprise energy balances by individual kinds of fuel and energy resources (FER), production units, time gaps, and also taking into consideration other factors affecting the energy consumption level.

2. Analysis of actual specific indices of energy consumption.

3. Calculation of normalized (progressive) specific indices of energy consumption. Comparison of actual and normalized indices.

4. Determination of priority tasks of the energy audit on the basis of the analysis of energy balances, actual and normalized indices of energy consumption, long-term plans for enterprise development and consultations with experts of the Customer.

5. Carrying out in-situ measurements to determine actual consumption of fuel and energy resources and reasons of its increasing in comparison with normative (calculated) level at concrete energy consuming entities and systems using standard and portable measuring tools. Estimation of the efficiency (use, effectiveness) for these units and systems, including the following:

  • Steam and hot water boilers;
  • Pumps, smoke exhausters, ventilators;
  • Heating and hot water supply systems;
  • Fuel furnaces and heat technological units;
  • Electric furnaces;
  • Steam supply systems and condensate return systems;
  • Compressed air systems;
  • Heat-insulating structures of buildings, pipelines, heat and refrigerating units;
  • Electrical supply systems;
  • Lighting systems;
  • Energy-intensive technological units and processes.

2.  Development of feasibility study (FS) of the energy saving measures (ESM) including determination of annual saving FER, costs of ESM implementation and payback period of capital outlays.

Standard ESM include:

  • The utilization of secondary energy resources (SER), including heat power of hot waste gas, heat air, water, industrial fuel gas, liquid and solid fuel waste, heat of technological materials and other SER
  • The replacement of obsolescent and outmoded boilers with modern units having high efficiency, optimal power and their placing in the immediate vicinity to the consumer (to avoid steam and hot water consumption in the pipelines);
  • updating of heat insulation of buildings, constructions and units, using modern heat insulation technologies and materials;
  • Replacement of low efficient fuel devices with modern fuel devices providing high efficiency of fuel use
  • Installation of cogeneration units to provide enterprises (buildings) with electric and heat power. In some cases, it is expedient to consider the use of the three-generation systems (electrical power + thermal power + refrigeration);
  • Replacement of traditional water heating with local systems of radiant or air heating for the objects with intermittent mode of operation and underloading;
  • Increasing the efficiency of steam utilization due to mounting of steam trap units and condensate return systems;
  • Installation of systems for weather and programme regulation of heat consumption of buildings;
  • Istallation of the automatic "fuel-air" ratio adjustment systems to increase efficiency of the fuel combustion;
  • Use of solar energy to increase the efficiency of hot water supply systems;
  • Istallation of heat pumps to utilize low-grade heat energy of water, air and soil.
  • Replacement of natural gas with biofuel in hot water and steam boilers;
  • Biogas production from animal and agricultural processing waste with the purpose of heat and electrical energy production.

Along with the standard ESM, there are developed special measures for concrete technological processes.

1. Optimization of the distribution of limited financial resources of the enterprise for ESM realization on the basis of its ranking by technical and economical efficiency indices.

2. Development of principle engineering solutions for ESM realization.

3. Carrying out engineering projects to implement individual energy saving measures.

In case of preliminary determination of energy audit tasks by the Customer, it may be performed not full, but partial (special) energy audit

Along with carrying out energy audit there is carried out the work on preparation of the investment projects, including

  • Development of business plans for investment projects of energy efficiency.
  • Rendering assistance to the enterprise in seeking for potential investors.
  • Rendering assistance to the enterprise in obtaining additional funding for implementation of the projects using Joint Implementation Mechanisms under the Kyoto Protocol.

Energy audit of the buildings

1. Target of energy audit. Estimation of technical and economical efficiency (annual saving, capital costs, pay-back period of the capital costs) of the measures aimed at reduction of financial costs for heat supply of the building and increasing the quality of heat supply.

2. List of the measures involved.

  • Warming of facades, camp ceiling, basement.
  • Installation of radiator reflectors.
  • Replacement or warming of the windows.
  • Installation of the automatized (computer-aided) system for weather and programme control of heat consumption of the buildings;
  • Installation of the individual boiler house (for the building with district heating).
  • Installation of the unit for cogeneration of heat and electrical power.
  • Installation of the heat pump.
  • Installation of the solar water heater.
  • Installation of the system for emission heat utilization.
  • Thermohydraulic adjustment of the heating system.
  • Other energy saving measures.

3. Stages of carrying out the works:

  • Development of the Statement of Work for carrying out the energy audit.
  • Collection of the basic data (building specification, data concerning its heat consumption and operating regimes).
  • In-situ measurements using portable and stationary measuring tools (heat counters, applied ultrasonic flow meters, air temperature sensors, heat carrier, infrared thermometers, hot-wire anemometers, heat flow probes).
  • Studies using calculation methods (heat losses through the filler elements of the building for different options of theirs embodiment, cost of the realization of the energy saving measures, annual costs in comparison with basic option, pay-back period of energy saving measures).
  • Preparation of the report.
  • Presentation of the work results.

 Methods of carrying out the works consists in determination of heat load of a building for different options of embodiment of the filler elements of the building and operating regimes, estimation of the heat energy economy by the means of comparison with basic (existing) option, calculation of the capital costs and the pay-back periods for different options of energy saving measures. The calculations are carried out by the means of approved computer-aided engineering methods. As initial data for the calculation, the results of the in-situ measurements (total heat load for heating and hot water supply, air temperature inside and outside of the building, heat flows through the different building elements of construction, inleakage of air volume), nameplate characteristics of the building, existing and forecast prices for heat energy, equipment and materials are used.

Period and cost of carrying out the work. The work is carried out during one month. The cost of the work per one building is 5 000 – 15 000 UAH depending on the quantity of energy saving measures and volume of the building under review.

List of energy audits and feasibility studies

  1. «Lisichansk rubber technical plant» Scientific and Manufacturing Enterprise, Ltd.
  2. «Demiteks» Public Joint-Stock Company
  3. Heat points of dwelling houses (Mitskevicha Str. 5 and Mitskevicha Str. 7 in Rivne, Ukraine).
  4. Heat networks of the Rotok residential district (Bila Tserkva), Kyiv oblast.
  5. «Yuzhny'j Mashinostroitelny'j zavod», GP PO
  6. Yagotinskiy Sugar-House, SE
  7. «Stakhanov technical carbon plant»
  8. «Uzhgorogteplocomunenergo»
  9. «Altchevsk by-product coke plant», Public joint-stock company
  10. Scientific-Production Enterprise «Luganskemal» Ltd.
  11. «Elopack-Fastiv »
  12. Feasibility study «Implementation of CHP system in district heat supply in Dnipropetrovsk an example of reconstruction of «Promenergouzel» enterprise.
  13. Survey of the heat supply system in Dnipropetrovsk, Dniprodzerzhynsk and Pavlograd.
  14. Heat supply system of JSC «AZMOL» in Berdyansk.
  15. Industrial steam boiler house of the pipe plant in Nikopol, Dnipropetrovsk oblast.
  16. Housing in Sinelnikove, Dnipropetrovsk oblast.
  17. Energy audit of 270 administrative buildings in Kyiv, Ukraine in the frames of the World Bank project «Energy saving in administrative and municipal buildings in Kyiv».
  18. Perechin Timber and Chemical Plant, OJSV.
  19. Veneer and plywood plant, Shostka.
  20. «Polissya-Agro» Ltd., livestock company.
  21. «Ukrtransnafta », 2008.
  22. «Procter & Gamble» plant in Boryspil, 2008 - 2009.
  23. Bread-baking plant #1, Zaporizhzhia, 2010.
  24. Bread-baking plant #3, Zaporizhzhia, 2010.
  25. Heat supply system of the State enterprise of a special instrumentation «Arsenal», 2010.
  26. Administrative and residential buildings in Kurahove, Donetsk oblast (15 buildings), 2010.
  27. Heat supply system of cities-recipient of the Municipal Heating Reform in Ukraine project: Myrhorod, Kremenchuh, Komsomolsk, Vinnytsia, Chernihiv, Korosten, Khmelnytsky, 2011.
  28. Administrative building, Starokyivska Str. 14, 2011.
  29. Heat supply system of Burshtyn and sources of thermal energy generation, 2011.

List of scientific and methodological developments on energy audit

  1. Handbook: "The Efficiency Increase and Modernization of Ventilation Systems”.
  2. Development of indices of economical efficiency of energy saving measures.
  3. Development of the energy audit measures and express-diagnostics of energy supply systems of the buildings.
  4. Development of the computer-based automatic data-processing system used while carrying out energy audit in the budget financed institutions.

The experts of the company have 11 year experience in carrying out energy audits and designing engineering systems of buildings and enterprises, relevant diplomas and certificates, complete set of portable measurement tools, developed methodical software for carrying out the work on high engineering, scientific and methodical level.