Elma Kurtalj

• HVAC Systems and Controls
• Compressed Air Systems
• Renewable Energy Applications
• Electric Motors and Drives
• Process Systems
• Steam Systems
• Heat Recovery
• Building Envelope Upgrades
• Switching Utility Providers or Utility Rates
• and more!

• Heating system
• Mechanical ventilation system
• Domestic hot water system
• Automatic control systems
• Lighting
• Various installations like kitchen, laundry, etc.
• Air-conditioning system

In addition, it is also necessary to take into account how the building and its installations actually are being operated and used (usually not as designed).

Typical energy auditing measures:

 Awareness and education: Many businesses find that educating staff about energy efficiency and conservation is a low cost way to begin saving energy or to strengthen existing energy practices. Involving staff in an energy management program can have other benefits too, such as improved staff morale and increased productivity. The challenge is to find out why people behave the way they do and to understand what would encourage them to adopt new behaviors. Motivation and awareness are the keys to changing attitudes and behaviors. Case studies show that increasing awareness and education about energy efficiency can save 5-10% of total energy consumption.



Improving lighting system: a significant percentage of electrical energy consumption of most buildings is used in lighting system. Following picture shows by using modern lighting system up to 85% energy saving can be achieve.

Installation of Thermostatic valves: Capital cost is approximately 400 KN per valve. Energy saving available depends on how well the radiators are balanced at present. Installing thermostatic radiator valves (TRVs) provides good control for individual radiators in a room. They work most effectively when kept at a constant level; to prevent anyone from changing the level you can activate the locking device that many TRVs feature, or fit a protective cap.





Up to 20% savings can be achieved by adding radiator thermostats to your existing heating system.

Building Energy Management System(BEMS): a building energy management system is simply a programmable control system used to provide automatic control of building services and other energy consumption plant. A BEMS differs from conventional control system in a number of important way including: integrated control of heating, ventilation, cooling and lighting systems, Networked control of complex heating and cooling strategies, Intelligent, demand driven and learned control responses, Data interface and integration with monitoring and targeting systems.




Above figure compares the primary energy consumption of two identical buildings. One is equipped with technology and the other is equipped with modern building automation including energy efficient room automation. The conclusion can be drawn from the comparison that applying building automation and room automation control strategies saves up to 50% of primary energy.

Using Variable Speed Drive(VSD): the goal of a variable-speed drive (VSD) is to modulate motor speed to reduce power demand and generate energy savings. Drive options constantly change, and how you match motor and drive affects system efficiency. Understanding the VSD’s effect on speed and resonant frequencies can reduce a motor’s life-cycle cost. in the other hand, a VSD regulates the speed of the motor, and in turn the speed of the pump or fan, by controlling the energy that goes into the motor, rather than restricting the flow of a process running constantly at full speed.


Following schematic shows Conventional Inefficient Fixed Speed System in comparison with Efficient Variable Speed Drive System In this representation, the power input remains constant regardless of changes in the load output over time, because the controlling device is a throttle or damper. So now with a variable speed drive we have tailored the input power to suit the output duty. The throttle or damper is eliminated with savings in maintenance.

 The payback period of a VSD averages 18–24 months but can be less than 12 months. The period depends largely on the type and size of the system and how much time the motor is operating at full speed versus how much flow is actually required to heat or cool the building space. The life cycle of HVAC equipment in commercial buildings is typically 15–20 years, so a one or two-year payback period can generate a substantial return on investment.

 Installation of energy efficient windows: Windows provide views, daylights, ventilation, and solar heating in the winter. Unfortunately, they can also account for 10% to 25% of your heating bill. Selecting windows that are gas filled with low emissivity (low-e) coatings on the glass can significantly reduce heat loss.

Insulation of the envelope:Checking your building’s insulation is one of the fastest and most cost efficient ways to use a whole building approach to reduce energy waste and energy cost. A good insulating system includes a combination of products and construction techniques that protect a building from outside hot or cold temperatures, protect it against air leaks, and control moisture. it can be increased the comfort of the building while reducing the heating and cooling needs by up to 10% by investing in proper insulation and sealing air leaks. Insulation is measured in R-values—the higher the R-value, the better walls and roof will resist the transfer of heat.




A building that is thermally efficient reduces the amount of energy required to maintain a comfortable living/working environment. A reduction in energy consumption means less fossil fuel is burned to produce that energy and the result is a reduction in polluting gases emitted into the atmosphere.

There are many examples of buildings performing more poorly than expected in energy terms due to poor quality workmanship in installing insulation. To achieve the level of energy efficiency predicted by the design, it is very important to ensure good quality workmanship and supervision during construction.

Energy audit may be performed for a variety of reasons:

• Evaluation of energy efficiency of building envelope and heating systems and planning of renovation measures.
• Planning of energy savings measures for a building if renovation of building envelope is planned and necessary.
• Applying a loan from the bank.

• Issuing an energy certificate.

• When improving the technical condition of building and improving energy efficiency at the same time, then the building’s certificate will be better and the value of real estate higher.

Activities after the energy audit:

In order to ease the process of applying for a bank loan and organizing the construction work, it is possible to order a project management service. The service includes technical drawings, obtaining building permission, finding construction companies, identifying the best offer, obtaining a bank loan and construction surveillance.

Energy Savings Bureau is not a one stop shop, but would like to identify itself as a long term partner for its clients in the field of energy efficiency. We are always grateful for feedback about the effect of energy efficiency measurements and would like to help in the future renovation process.