All A B C D E F G H I J K L M N O P Q R S T U V W X Z

Price – can the electricity price for entrepreneurs and municipalities change during the year?

The electricity prices agreed in the contract with Slovenské elektrárne - energetické služby do not change during the term that the supply was agreed for.

Electricity supplier – who is the supplier and who do I purchase the electricity from?

Few years ago there were just three companies supplying electricity, so called „traditional suppliers“: Západoslovenská energetika, a.s., Stredoslovenská energetika, a.s., and Východoslovenská energetika, a.s.

The customer had no chance for selection, and had to purchase electricity from one of those three companies. Since 2005 the electricity market was liberalized, and the customer/consumer can choose the electricity supplier from among other suppliers, sometimes called „alternative“, at its own discretion.

The majority of us are convinced that we buy electricity from „power plants“.  However, this term covers various electricity suppliers. Slovenské elektrárne just produces the electricity and sells it to particular suppliers supplying it further to you.

„Supply“ to your  socket is provided by distribution companies that do not change even if you change your contractual supplier. The distribution companies are Západoslovenská distribučná, a.s., Stredoslovenská energetika – distribúcia, a.s., Východoslovenská distribučná, a.s.

Distribution companies manage electrical line, and therefore if you change the supplier, no one will exchange your electric supply meter, line or wires, they all remain the same. You should contact the distribution companies in case of any breakdown. You can find the contact details in this site.

Energy efficiency – what´s that?

Systematic process leading from identification of real energy needs, through identification of suitable technologies, up to effective operation and maintenance of applied technology. Measuring, management, and evaluation of energy needs in all relevant fields of consumption and operation are an important part.

My energy audit was already processed. What shall I do now?

Energy auditor proposes measures for increasing of energy effectiveness. He/she issues from findings identified during the audit. The measures can be low-cost and free of any cost, expensive, or even extra expensive with longer return.

Measures free of any cost include, for example, asking the employees to switch off the lights, to close the water cocks, or to close the doors and windows during the heating season. Introduction of these measures is in interest of every entrepreneur and no professional assistance is required to implement them. They have immediate effect, they are simple, and focused more on change of employees´ habits who should not waste the utilities.

The experts from the Slovenské elektrárne - energetické služby will help all applicants with technical and economic evaluation of the proposed measures, their adjustment to real needs and possibilities of the enterprise, and with implementation of the measures. More information

EU funds – is it possible to use the „EU funds“ to increase the energy effectiveness?

Yes. Operational programmes for the period 2014 – 2020 offer wide range of possibilities to support implementation of the projects for public sector, small and medium-sized entrepreneurs. We will advise you how to use these chances. Contact us

Investments – how to modernize to energy effective technologies, if I have no money or credit?

Investments in energy effectiveness measures can be paid from energy savings. There are several models, how to pay the projects focused on reduction of utilities consumption from savings of operating costs. Including the option of financing the measures from external sources. Slovenské elektrárne - energetické služby has already used such model, for example for modernization of public illumination in municipalities.

LED – when is the payback of an investment in LED?

When calculating the return on investment in a LED system, total number of hours of lighting is the most influential factor. The more hours of lighting per day, the higher electrical savings compared to the original system. Depending on the scope of the investment, if lighting more than 8 hours a day, the investment in LED systems is repayable within 2 – 5 years.

LED – What shall I do with them after their lifetime?

After reaching their lifetime, LED sources do not extinguish. However, their light outputs drop and their design lighting levels may no longer meet the value required by standards. If the body is made of time-lasting materials (e.g., aluminium), the LED laps will still operate even when technologically outdated.

Renowned manufacturers provide guarantees of availability of electrical components and spare parts often beyond ten years. Therefore, the brand and history of the manufacturer are important. Although you pay extra for the brand, you can be sure that you have sustainable technology. And this is true even despite continuous progress in the field of electronics.

LED – are they really so much more economical than traditional light sources?

Yes, they are. To increase the quality of light – and thus the quality and safety of the workplace – while reducing electricity consumption, smart controlled LED systems are the only option.

Keeping constant the level of illumination, LEDs savings compared to conventional technologies (in the industry incandescence lamps and fluorescent lamps) are on average 50 percent. Furthermore, LED technology continuously improves its efficiency (so-called luminous efficiency [lumen/W], i.e. more light for 1 Watt). Globally, about a third of the electricity is used for lighting. Effective systems can lead to a dramatic reduction of electricity consumption and thus cut the production of greenhouse gases.

LED – is it worth for companies to invest in LED lighting?

LEDs are today a widespread reality in private houses. In the industry, the interest for this technology is increasing more and more every day: after years of development and improvements, today's LED systems already have the reliability and ruggedness necessary for industrial applications. And they save electricity.

Retail price of electricity is forcing users to resort to more energy-efficient technologies, which undoubtedly includes LEDs. Growing demand is pushing LED producers to broaden their activities. As a result, there is wide offer of LED light sources, respectively LED lamps, available on the market.

The rule "quality corresponds to the price" applies here, too: more expensive lamps and sources generally have better light-technical parameters, longer life, easier maintenance, and ultimately a better user design. The difference between “cheap” and “expensive” LEDs can be even several tens of thousands of hours of lifetime.

LED – will I be able to maintain for the new intelligent LED control system in my company?

Maintaining LED systems is not more complicated than maintaining classic lighting. Life of the LED chips and electronics reaches 50,000 hours or more, which is about five years of non-stop lighting. Conventional lamps and tubes have lower life and their frequent replacement disproportionately affects corporate maintenance budgets. Here, LED systems can save considerable resources. Cleaning of optical parts is not more demanding than maintenance of classical lamps. When you are buying lamps for your facility, it is useful to check the IP rating:  the higher the number, the more the lamp is resistant to external agents, the lower will be the maintenance.

LED – where can I save with LED lighting in addition to electricity consumed or cheaper maintenance?

Reliable and efficient lighting not only saves consumption and greenhouse gas emissions, but also increases the safety and quality of the workplace. The impact of light on the work activity is not negligible. It increases productivity, reduces accidents in the workplace, as well as the number of rejects produced. Reliable systems also reduce the total number of unproductive days due to service outages. All this has a positive impact on the profitability of the company. Reduced consumption of LEDs also increases reserves of backup sources, making them available for other technologies. New lighting complies with requirements and standards, i.e., there is no threat of fines imposed by competent authorities, and there are no problems associated with deteriorating health of employees.

LED – in what type of interior or exterior can I use LED light?

Today, LED systems are usable virtually in any industrial applications. Given the need for better heat dissipation from the light source, LED installation in areas with high temperature should be well considered and even better designed.

LED – Can I evaluate the quality of LED lamp based on its picture in a catalogue?

The amount of aluminium is a good guide. Aluminium heatsink provides cooling for the circuit boards. Simply put – the more aluminium, the better the lamp.

LED – does the light from LEDs differ from light from traditional light sources?

Lamps with conventional ballasts (starter and choke) operate at a frequency of 50Hz. As a result, we perceive the flickering of such a light. It is a disruptive effect, adversely affecting eyes and in heavy industry can be extremely dangerous. LED operating frequency is higher by several orders. Therefore, human eye doesn´t perceive any flickering.

The colour of the light is correlated with the temperature at which the LED operates (from warm 2700K to very cold 6000K) and the rendering index (recognition) of colours (so-called CRI) is more than 80 (maximum being 100).

Costs – is it worth to reduce the costs of utilities from the point of view of the total costs?

Certainly yes. The costs related to consumption of utilities belong to top three highest cost items at all. Depending on the business type the top three highest costs include also personal costs and material.

However, it is often much more simple to reduce the consumption of utilities than to reduce the wage or material costs. And more effective utilities management improves the business economics and competitiveness.

Personal data protection – who gets in contact with personal data?

Except for Slovenské elektrárne - energetické služby employees the companies that the Slovenské elektrárne - energetické služby cooperates with can get in contact with personal data of the customers: BMB Leitner CS, s.r.o., Ipesoft, s.r.o., Slovenské elektrárne, a.s., SKLEGAL s.r.o. and distribution companies.

Regulation – what entrepreneurs are affected by electricity price regulation?

Small enterprises defined by the law as final electricity consumers with consumption for previous calendar year for all its consumption sites on the selected territory of the Slovak Republic not more than 30 000 kWh are regulated. Enterprises with annual consumption more than 30 MWh are not regulated.

Tariffs – what are the prices for wholesale customers and large companies?

If your company consumes more than 1 GWh electricity annually, Slovenské elektrárne - energetické služby considers you a large company and we will prepare a tailor-made offer for you. More information

Tariffs – Which one is the most suitable for households?

When selecting the rate it is important to know approximate annual electricity consumption and what the purposes are that the electricity is to be used for (watching TV, cooking, heating, water heating, etc.). Based on such information we in the Slovenské elektrárne - energetické služby will be able to recommend you the most suitable rate. You can also call our Customer service line 0850 555 999, or send email to the address