Decree No. 441 / 2012 Coll.
Decree on the minimum efficiency of energy use in electricity and heat generation
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01.01.2013
13.12.2012
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441
DECLARATION
of 5 December 2012
on the minimum efficiency of energy use in electricity and heat generation
The Ministry of Industry and Trade provides, pursuant to § 14 (4) of Act No. 406 / 2000 Coll., on Energy Management, as amended by Act No. 165 / 2012 Coll. and Act No. 318 / 2012 Coll., for the implementation of § 6 (1) and under § 53 (1) (b) of Act No. 165 / 2012 Coll., on Supported Energy Sources and on the amendment of certain laws:
Subject matter and scope of the adjustment
(1) The Decree provides for the minimum efficiency of the use of energy for the construction of a new electricity or heat plant or for the production of electricity or heat for which a change in the completed construction is carried out, pursuant to Section 6 (1) of the Energy Management Act
(a) in the manufacture of heat energy for:
1. boilers,
2. combustion boilers; and
3. solar collectors,
(b) in the production of electricity for:
1. steam turbines with condensing turbine,
2. gas turbine,
3. Paraflastic equipment,
4. combustion engine,
(c) in the combined production of electricity and heat for:
1. a gas-fuelled equipment with a heat supply;
2. steam turbine counterpressure,
3. condensation demand turbine,
4. gas turbine,
5. combustion engine,
6. microturbine,
7. Stirling engine,
8. fuel cell,
9. steam engine,
10. Organic Rankin Cycle; or
11. a combination of the technologies referred to in points 1 to 10.
(2) The minimum efficiency of the use of energy pursuant to Article 6 (1) of the Energy Management Act is not specified for electricity or heat plants.
(a) with internal combustion engines up to the total electrical power of the power plant 90 kW;
(b) using nuclear fuel;
(c) using waste heat from chemical processes; or
(d) designated as replacement or emergency sources operated only in emergency management to ensure emergency energy supply and sources used to put the heat or power plant into service, which are thus designed and specified in the documentation for the location and permit of the construction.
(3) The Decree also provides for the minimum efficiency of the use of energy to meet the entitlement to support electricity produced from renewable sources pursuant to § 4 (4) of the Act on Supported Energy Sources, the right to support electricity produced from secondary sources pursuant to § 5 (3) of the Act on Supported Energy Sources and the right to promote heat from renewable sources pursuant to § 24 (3) and § 25 (1) of the Act on Supported Energy Sources
(a) in the manufacture of heat energy for:
1. boilers,
2. the technologies referred to in paragraph 1 (c) to a total electrical installed power of 7,5 MW, but when installed in an existing heat plant only up to an amount corresponding to the potential use of its existing heat output for electricity production,
3. heat plants using geothermal energy with a power output exceeding 200 kW;
(b) in the production of electricity for the technologies referred to in paragraph 1 (c).
(4) The Decree provides further
(a) the method of determining the efficiency of the use of energy in electricity, heat or cogeneration;
(b) the frequency of evaluation of the actual efficiency of energy use and its comparison with the minimum efficiency values of energy use.
Determination of efficiency and minimum efficiency of energy use in heat energy production
(1) The provisions of this paragraph relate to the requirements for the construction of a new heat production plant or to its amendment pursuant to Section 6 (1) of the Energy Management Act and to the requirements for the entitlement to operating heat support from supported biomass with a rated heat output above 200 kW pursuant to Section 24 and the investment aid for renewable heat pursuant to Section 25 of the Act on Supported Energy Sources.
(2) Efficiency of energy use in heat energy production
(a) in the fuel and gas boiler, the efficiency of heat energy production shall be determined in accordance with the procedure set out in Annex 1 to this Decree;
(b) in the solar collector, the efficiency of heat energy production shall be determined by the procedure set out in Annex 3 to this decree.
(3) The efficiency of the supply of heat energy from the heat plant shall be determined in accordance with the procedure set out in Annex 2 to this Decree.
(4) The minimum efficiency of heat production in boiler operation, depending on the type of fuel fired and the rated boiler output, is given in Annex 15 to this Decree, in the operation of gas turbine combustion boilers is given in Annex 16 to this Decree. The minimum efficiency of the supply of heat energy from the heat plant is given in Annex 17 to this Decree.
(5) Where more than one boiler is installed in a heat production plant, the minimum efficiency of heat generation shall not apply to a boiler which, for operational reasons, has been used repeatedly in a given year only at intervals of less than 168 hours and which do not exceed the total operating time of 2000 hours / year, or where the boiler is operated with a power reduced to 60% of the nominal value or less. This is without prejudice to compliance with the minimum efficiency of the heat energy supply set out in Annex 17 to this Decree.
(6) Where measurements of the heat energy produced and fuel consumption on all boilers are not installed in the heat production plant, compliance with the minimum production efficiency for boilers equipped with measurement shall be determined. For other boilers, compliance with the minimum production efficiency shall be determined for the part of the year when the operating conditions allow this, in particular when the boiler was operated separately. Compliance with the minimum efficiency of the heat energy supply referred to in Annex 17 to this Decree shall always be ascertained.
(7) When reconstructing the boiler, the minimum efficiency of the heat energy production referred to in Annex 15 to this decree or Annex 16 to this decree or the minimum efficiency of the heat energy supply referred to in Annex 17 to this decree need not be respected, provided that the energy audit or energy assessment shows that its compliance is technically not possible or economically ineffective. In this case, all available technical measures and adjustments to the operating regime shall be made to improve the energy efficiency achieved so far.
(8) The minimum efficiency referred to in Annex 15 to this Decree need not be met by steam boilers involved in the production of electricity when the efficiency of electricity production meets the requirements of Annex 18 to this Decree.
(9) The minimum efficiency of the production of heat energy from the solar collector is given in Annex 22 to this Decree.
Determination of efficiency and minimum energy efficiency in electricity production
(1) The provisions of this paragraph relate to the requirements for the construction of a new electricity generation plant or to its amendment pursuant to Section 6 (1) of the Energy Management Act and to the requirements for the entitlement to the promotion of electricity produced from degaussing or mining gas pursuant to Section 5 (3) of the Act on Supported Energy Sources.
(2) Efficiency of energy use in electricity generation
(a) in a steam engine with a condensing turbine, the efficiency of electricity generation shall be determined in accordance with the procedure set out in Annex 4 to this Regulation;
(b) the efficiency of electricity generation shall be determined in the combustion engine set out in Annex 7 to this Regulation,
(c) in the gas turbine, the efficiency of electricity generation shall be determined in accordance with the procedure set out in Annex 5 to this Regulation;
(d) the efficiency of generation of electricity shall be determined in a pargas plant in accordance with the procedure set out in Annex 6 to this Decree.
(3) The minimum efficiency of electricity generation in the operation of steam turbines is set out in Annex 18 to this Decree. Where there is more than one steam generator in a power plant, the minimum efficiency of electricity production as set out in Annex 18 to this Decree shall apply to the average value of the whole power plant.
(4) The minimum efficiency of electricity production as set out in Annex 18 to this Decree shall not apply to steam condensing sets which take steam from a distribution at a lower pressure than that at the output of the boilers and serve as a general rule for the regulation of fluctuating steam sampling.
(5) When reconstructing a steam condensing turbojet, the minimum efficiency of electricity production as set out in Annex 18 to this Regulation need not be respected if an energy audit or an energy assessment shows that sufficient heat energy consumption or the introduction of cogeneration is technically inappropriate or economically inefficient to comply with it.
Determination of efficiency and minimum efficiency of energy use in cogeneration
(1) The provisions of this paragraph shall apply to the construction of a new cogeneration plant, or to its amendment pursuant to Article 6 (1) of the Energy Management Act, and to the requirements for the entitlement to the promotion of electricity produced from biomass or bioliquids or biogas pursuant to Article 4 (4) of the Act on Supported Energy Sources, the right to the promotion of electricity produced from secondary sources other than degaussing or mining gas pursuant to Article 5 (3) of the Act on Supported Energy Sources, and the right to the operational support of heat produced from biomass with an installed power up to 7,5 MWe pursuant to Articles 24 (3) and 25 (1) of the Act on Supported Energy Sources.
(2) Efficiency of energy use in electricity and heat production
(a) the efficiency of the energy production shall be determined in a steam-gas plant with a heat supply in accordance with the procedure laid down in Annex 6 to this Regulation;
(b) the efficiency of energy production shall be determined in the steam pressure turbine or in the condensing demand turbine in accordance with the procedure set out in Annex 4 to this Regulation;
(c) in the gas turbine, the efficiency of energy production shall be determined in accordance with the procedure laid down in Annex 5 to this Regulation;
(d) in the combustion engine, the efficiency of the energy production and in combination with boilers shall be determined in accordance with the procedure laid down in Annex 7 to this Regulation;
(e) in the fuel cell, the efficiency of energy production shall be determined in accordance with the procedure set out in Annex 8 to this Regulation and, in combination with the boiler, determined in accordance with the procedure set out in Annex 9 to this Regulation;
(f) in the organic Rankin cycle, the efficiency of energy production shall be determined in accordance with the procedure set out in Annex 10 to this Regulation and, in combination with the combustion engine, determined in accordance with the procedure set out in Annex 11 to this Regulation,
(g) in the microturbine, the efficiency of energy production shall be determined in accordance with the procedure set out in Annex 14 to this Regulation;
(h) the energy efficiency of the Stirling engine shall be determined in accordance with the procedure set out in Annex 12 to this Regulation;
(i) in the steam engine, the efficiency of energy production shall be determined in accordance with the procedure set out in Annex 13 to this Decree.
(3) Minimum efficiency of electricity and heat production
(a) it is listed in Annex 19 to the present Decree in a steam-gas plant with a heat supply;
(b) it is listed in Annex 18 to the present Decree in the steam anti-pressure turbine and condensing demand turbine;
(c) the gas turbine is listed in Annex 19 to this Decree;
(d) the combustion engine is listed in Annex 20 to this Decree and in combination with boilers in Annex 21 thereto;
(e) in a fuel cell, in a microturbine, in a Stirling engine, in a steam engine and in a combination of a combustion engine with a fuel cell or with an ORC cycle, it shall, on the basis of the calculation referred to in paragraph 2 (e), (g), (h) and (i), propose a builder or owner of the said electricity or heat plant. The proposed minimum efficiency values are agreed by the Ministry,
(f) in the organic Rankin cycle is listed in Annex 18 to this Decree.
(4) Where there are more than one of the same technologies referred to in paragraph 1 in a power plant, the minimum efficiency of electricity and heat generation shall apply to the average value of the whole power plant.
(5) When reconstructing a steam condensing demand turbine, the minimum efficiency of electricity production as set out in Annex 18 to this Regulation need not be respected if an energy audit or an energy assessment shows that sufficient heat or cogeneration cannot be ensured to comply with it is technically inappropriate or economically inefficient.
Reference parameters related to fuel quality
(1) The minimum efficiency of each type of energy technology shall be determined on the basis of the calorific value of each type of fuel referred to in Annex 23 to this Regulation and, in the case of biomass, the water content of the fuel.
(2) The calorific values of each type of fuel other than those listed in Annex 23 to this Regulation shall be demonstrated by the owner of the electricity or thermal energy plant by a protocol issued by an accredited laboratory or another authorised person.
(3) The energy manufacturer shall verify the calorific value of the fuel at least every 6 months and on any change in the fuel supplier.
Frequency of evaluation of minimum energy efficiency
(1) The efficiency of heat energy production, the efficiency of electricity production, including the efficiency of electricity generation from cogeneration, shall be evaluated at least annually except in the cases referred to in paragraph 2.
(2) In the case of entitlement to aid under Sections 4, 5, 24 and 25 of the Act on Supported Energy Resources, efficiency shall be evaluated once a month.
(3) The results of the comparison of the calculated energy efficiency with the minimum energy efficiency shall be used:
(a) in the report on the periodic inspection of the boiler and heat distribution pursuant to the Energy Management Act;
(b) in the report on the production of electricity from supported sources and in the report on the production of heat from renewable sources under the Act on Supported Energy Sources.
(4) On request, the calculation, evaluation of energy efficiency and comparison with minimum energy efficiency for required periods shall be submitted to the Ministry or State Energy Inspection.
Repeal
Decree No. 349 / 2010 Coll., establishing the minimum efficiency of energy use in electricity and heat generation, is deleted.
Efficacy
This Decree shall take effect on 1 January 2013.
Minister:
MUDr. Cuba v. r.
Příloha č. 1
Annex No 1 to Decree No 441 / 2012 Coll.
Determination of heat energy efficiency in boilers
(1) The efficiency of heat energy production ηv in all types of boilers with all types of fuels is determined as the ratio of the heat energy produced in the Qv [GJ] boiler and the energy of the fuel burned in the Qpal [GJ] boiler over the same period of time expressed as:
ηv = Qv × 100Qpal = Qv × 100Mpal × Qir%
(2) The heat energy produced in the Qv boiler is determined by the type of heat transfer substance
(a) for hot water boilers
Qv = Mv × ivy- ivs1000 GJ
(b) for steam boilers producing overheated steam
Qv = Mp × ip- inv1000 GJ
(c) for steam boilers producing saturated steam
Qv = Mnv × ip- inv1000 GJ
(3) If the procedure referred to in paragraph 2 cannot be applied, since no reliable, technically appropriate measuring instruments are available for boilers with a rated power of up to 2,5 MW for gaseous or liquid fuel, or their acquisition would be economically inefficient, the efficiency of heat energy generation ηv shall be determined by means of measurements carried out in the relevant year according to the relationship:
ηv = 100 - ξk - 4 [%]
(4) For boilers with a rated output exceeding 2,5 MW, heat energy efficiency ηv is determined according to the standard ČSN 07 0305 - Evaluation of boiler losses.
(5) For boilers installed in municipal or industrial waste incineration plants, the efficiency of heat energy generation ηv shall be determined by means of continuous or periodic measurements in the relevant year according to the relation:
ηv = 100 - ξk - 8 [%]
(6) For gas turbine flue gas boilers, the efficiency of heat energy generation ηv shall be determined as the ratio of the difference between the average annual flue gas temperature at and at the outlet of the boiler and the average annual temperature at the inlet, minus the heat loss from the boiler to the surrounding area according to the relation:
ηv = ts- tkts- ξss100 × 100%
(7) The loss of a significant heat of flue gas ξk in the case referred to in paragraphs 3 and 5 may be determined by measuring the CO2 content (ωCO2) in the flue gas behind the boiler, i.e. the loss of a significant heat of flue gas ξk - according to ČSN 07 0305 - Evaluation of boiler losses
ξk = K1.ttsk ωCO2%
ω value The CO2 shall be determined either by direct measurement or by calculation of the measured O2 content in the flue gas behind the boiler and the excess air α
ωCO2 = ωCO2maxα
α = 2121-ωO2
where
K1 [-] Coefficient for coal according to ČSN 070305; for LTO = 0,58; for TTO = 0,6; for ZP = 0,48; for municipal waste = 0,7;
Mnv [t] amount of drinking water at boiler inlet
Mp [t] amount of steam at boiler outlet
Mpal [t, tis.m3] amount of fuel burned
Mv [t] quantity of circulatory water flowing through the boiler
Qir [MJ / kg, MJ / m3] fuel calorific value
Qpal [GJ] energy of the fuel burned in the boiler or in the heat production plant
Qv [GJ] heat produced in boiler
ξss [%] Loss by sharing the heat from the boiler to the surrounding area (if not known from the documentation, use ξss = 1%)
ξk [%] Loss of a significant heat of flue gas (chimney) determined on the basis of temperature measurement and analysis of the flue gas behind the boiler (with a greater number of measurements the average value in the relevant year)
Inv [kJ / kg] average annual or monthly enthalpy of drinking water at boiler inlet
ip [kJ / kg] average annual or monthly steam enthalpy at boiler output
ivs [kJ / kg] average annual or monthly enthalpy of hot or hot water at boiler inlet
Ivy [kJ / kg] average annual or monthly enthalpy of hot or hot water at the output of the boiler
tk [° C] average annual or monthly flue gas temperature (virtually flue gas temperature when determining the loss of a significant heat of flue gas) at the outlet from the boiler to the chimney
ts [° C] average annual or monthly flue gas temperature from turbine at boiler inlet
ηv [%] efficiency of heat production in boiler
tvz [° C] air temperature entering the boiler
α [-] excess air in the flue gas behind the boiler
ωCO2 [v%] measured CO2 content in the flue gas behind the boiler
ωCO2 max [v / v%] CO2 content of combustion gases in theoretical combustion (depends on the type of fuel) for coal = 18,7; for brown coal = 19; for LTO = 15,6; for TTO = 16; for ZP = 11,9; for municipal waste = 17;
ωCO2 [v / v] measured O2 content in the flue gas behind the boiler
Příloha č. 2
Annex No 2 to Decree No 441 / 2012 Coll.
Determination of the efficiency of the heat energy supply from the heat plant
(1) The efficiency of the supply of heat energy ηd is determined as the ratio of heat energy delivered from the heat plant Qd [GJ] and the energy of the fuel burned in all boilers Qpal [GJ] over the same period of time, expressed as:
ηd = Qd × 100Qpal = Qd × 100Mpal × Qir%
(2) The heat energy supplied from the Qd heat plant is determined according to the type of heat carrier
(a) heat energy supplied in hot or hot water
Qd = Mvd × idv-idz1000 GJ
(b) steam-supplied heat energy
Qd = Mpd × i--ik1000 GJ
(c) heat energy supplied in the steam, including loss of condensate in the heat distribution and at the customer (outside the heat source)
Qd = Mpd × iċ-Mk × ik1000 GJ
d) the heat energy supplied in the steam of several outputs with different parameters is the sum of the product of the measured quantity and its corresponding enthalpy for individual parameters of steam and reversible condensate
Qd = dost r i = 1nMpdi × iğ-iki1000 respectively Qd = vii = 1nMpdi × ipdi-vii = 1nMki × iki1000 GJ
where
Mk [t] amount of reversible condensate at the entrance to the heat production plant,
Mki [t] amount of reversible condensate of individual parameters at the input to the heat production plant
Mpal [t, tis.m3] amount of fuel burned
Mpd [t, tis.m3] amount of steam measured at the output from the heat plant
Mpdi [t] amount of steam of individual parameters at the output from the heat plant
Mvd [t] quantity of circulatory water measured at the outlet of the heat plant
Qd [GJ] heat supplied from the heat plant
Qir [MJ / kg, MJ / m3] fuel calorific value
Qpal [GJ] energy of the fuel burned in the boiler or in the heat production plant
idv [kJ / kg] average annual enthalpy of circulatory water at the output of the heat plant
idz [kJ / kg] average annual enthalpy of circulatory water at the entrance to the heat plant
ik [kJ / kg] average annual enthalpy of reversible condensate
iki [kJ / kg] annual enthalpy of reversible condensate of individual parameters at the input to the heat production plant
ipd [kJ / kg] average annual steam enthalpy at the point of flow measurement
ipdi [kJ / kg] annual enthalpy of pairs of individual parameters at the output of the heat plant
ηd [%] heat energy efficiency of the heat production plant
Příloha č. 3
Annex No. 3 to Decree No. 441 / 2012 Coll.
Determination of the efficiency of thermal energy production in solar collector
(1) The efficiency of the solar collector
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Regulation Information
| Citation | Decree No. 441 / 2012 Coll., establishing the minimum efficiency of energy use in electricity and heat generation |
|---|---|
| Regulation Type | Order |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 13.12.2012 |
|---|---|
| Effective from | 01.01.2013 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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