Where to use cogeneration
Paper and chemical industry
Engineering industry
Food industry
Agricultural industry
Heating and CHP plants
Accommodation facilities
Hospitals and polyclinics, retirement homes, social care institutions
Swimming pools, aquaparks, spa facilities, wellness centres
Administrative, logistics, business centres and warehouses
The CHP unit produces electricity to support the production processes and heat in the form of hot or warm water or steam if needed in the production process. It is also possible to produce cold water. The cold produced by CHP is significantly cheaper than that produced by conventional means. Due to the constant and high consumption of heat and electricity during the year, the economic savings are large. In these industries, it is common for companies to have their own heat sources with over 20 MW of fuel input. The price of heat produced from KGJ does not change much even with the high price of allowances. This is due to the fact that the price of electricity produced from KGJ rises with the price of the allowance and then the revenue from it also rises, thus significantly eliminating the impact of the allowance on the price of heat. In this case, the installation of a CHP unit can eliminate the cost of emission allowances. In addition, independence from external suppliers ensures continuity of operation in the event of a black-out. A properly designed CHP unit, even if businesses do not have a stable year-round heat consumption, brings customers significant savings even when running for six to eight months during the colder seasons when heat is needed for heating and DHW. The price of heat produced from KGJ does not change much even with the high price of allowances. This is due to the fact that the price of electricity produced from KGJ rises with the price of the allowance and then the revenue from it also rises, thus significantly eliminating the impact of the allowance on the price of heat. The economic savings under such a scheme can be in the order of millions of crowns per year, depending on the size of the operation. Moreover, the savings are made up of several components, so they are diversified and long term. Especially in times of rising energy prices, the CHP unit pays for itself and eliminates the impact of rising input costs. In food production, there is a high consumption of process heat or steam. Both can be produced more cheaply on a CHP unit than with conventional sources. Along with this, this production is also demanding in terms of electricity consumption and therefore CHP units are a suitable way to reduce costs in these plants and at the same time reduce the cost of emission allowances for sources with a fuel input of more than 20 MW. The price of heat produced from CHP does not change much even with the high price of allowances. This is due to the fact that the price of electricity produced from KGJ rises with the price of allowances and then the revenue from it also rises, thus significantly eliminating the impact of allowances on the price of heat. It is also possible to produce cold water. Cold produced in CHP is significantly cheaper than that produced in the conventional way. The animal waste generated by these plants makes it possible to produce biogas on site through anaerobic digestion. Businesses using biogas cogeneration units can thus ensure energy independence and significantly improve the cost-effectiveness of the business. In addition, all energy is produced in an environmentally friendly way. In the Czech Republic, most biogas plants were commissioned eight or more years ago and nowadays they are faced with the need to renew CHP units that need overhaul or replacement after 50-60,000 motor hours. KGJ refurbishment is part of our service and we have a good track record in this field. CHP units are also a suitable source of energy for CZT systems, which have a long tradition in the Czech Republic and are an important part of our energy sector. Heat consumption is usually significantly higher during the heating season. Large sources of thermal energy are now at a disadvantage due to high allowance prices and often find themselves on the edge of a fight for survival. Even when switching from coal to gas, they often face rising heat prices due to rising allowance prices. But this is only the case if they install gas boilers instead of combined heat and power. The price of boiler heat is very sensitive to rising allowance prices. Whereas the price of heat produced from CHP does not change much even with high allowance prices. This is due to the fact that the price of electricity produced from KGJ rises with the price of allowances and then the revenue from KGJ rises, thus significantly eliminating the impact of allowances on the price of heat. This proves that KGJ is a suitable instrument for eliminating the negative effects of high allowance prices for companies and heating plants. The beauty of this mechanism is that it has a kind of self-regulation (higher EUA price = higher revenue from EE sales = mitigation of EUA impacts). Moreover, this will soon be backed up by interesting returns for providing flexibility, which will be a scarce commodity. Plain and simple, thermal plants and utilities have a great chance to become electricity producers and profit from it, or at least mitigate the impacts of allowances.
Accommodation facilities with a capacity of approximately 50 beds or more usually have sufficient heat demand for heating in the heating season and in the summer season they consume cold for air conditioning and there is a constant consumption of DHW all year round. The need for electricity is also relatively high, especially for larger accommodation facilities, and CHP units can reduce the cost of this energy significantly. It is also an advantage in terms of balancing energy consumption if hotels have their own laundries, almond rooms, wellness centres or restaurants. Facilities such as hospitals have a high consumption of heat electricity. In addition, the demand is fairly even throughout the day and year. In summer, some wards also need cooling in the form of air conditioning - this can be provided by installing a trigeneration unit - a CHP unit connected to an absorption unit. In large hospitals, there are large thermal power sources above 20 MW of fuel input which are covered by the EU ETS. CHP is a solution for these large hospitals that have their own heat source. The price of heat produced from KGJ does not change much even with the high price of allowances. This is due to the fact that the price of electricity produced from KGJ rises with the price of the allowance and then the revenue from it also rises, thus significantly eliminating the impact of the allowance on the price of heat. In hospitals, more than anywhere else, there is a need for a high quality and uninterrupted supply of electricity and therefore the advantage of the CHP unit, which is equipped with a synchronous generator that enables islanded power generation in the event of an energy black-out, is perhaps most applicable here.
The demand for electricity and heat is relatively stable throughout the year. Thermal energy is needed for heating water in the pool, in the showers, for space heating including saunas and whirlpools. Electricity is used for lighting, running pumps and non-technical services. These facilities are often subsidised by municipal coffers, so the installation of a CHP unit can help municipal budgets in particular, but also all other operators of these facilities. Properly designed CHP units can deliver significant savings. These types of buildings have a high electricity consumption all year round. At the same time, heating costs during the heating season and cooling costs outside of it are high. As a rule, the heating and cooling distribution systems are already in place and therefore only minimal costs for the modification of the premises are required in the case of the installation of a CHP unit. These factors make commercial and office centres one of the most suitable locations for the installation of a CHP unit. By installing CHP, these buildings gain a competitive edge thanks to the lowest possible energy costs and become more attractive to tenants.