SPREAD CALCULATIONS – Spark, Dark, Clean Spark and Clean Dark SPARK SPREAD The spark spread is the theoretical gross margin of a gas-fired power plant from selling a unit of electricity, having bought the fuel required to produce this unit of electricity. SPARK SPREAD – Thomson Reuters Spark Spread is calculated based on TRPC Power and Natural Gas prices. An efficiency of 0.5 (50 %) is considered for gas fired plants. FORMULAS TO CALCULATE SPARK SPREAD FOR THE FOLLOWING COUNTRIES: Germany: Thomson Reuters DE Spreads SPARK DE = [DE Elec.Eur/Mwh] – [NCG Gas Eur/Mwh / Efficiency factor] France: Thomson Reuters FR Spreads SPARK FR = [FR Elec.Eur/Mwh] – [(ZEE Gas p/th * E/pence) / (2.93071 * Efficiency factor)] Italy – Thomson Reuters IT Spreads SPARK IT = [IT Elec.Eur/Mwh] – [ITEC Gas Eur/Mwh / Efficiency factor] Netherlands – Thomson Reuters NL Spreads SPARK NL = [NL Elec.Eur/Mwh] – [TTF Gas Eur/Mwh / Efficiency factor] SPARK BE = [BE Elec.Eur/Mwh] - [ZEE Gas Eur/Mwh / Efficiency factor] Efficiency Factor for Gas – 50% Conversion: Conversion from Therm/MWH = 0.0293071 Conversion from £/pence = 0.01 Conversion from Pound (£) to Euro (E) = RIC <GBPEUR=X> DARK SPREAD The term dark spread refers to the similarly defined difference between cash streams (spread) for coalfired power plants. DARK SPREAD – Thomson Reuters Dark Spread is calculated based on TRPC Power and Coal prices. An efficiency of 0.35 (35 %) is considered for coal fired plants. FORMULAS TO CALCULATE DARK SPREAD FOR THE FOLLOWING COUNTRIES: Germany: Thomson Reuters DE Spreads DARK DE = [DE Elec.Eur/Mwh] – [API2 $/mT / (6.9784 * Efficiency factor)]/EURUSD France: Thomson Reuters FR Spreads DARK FR = [FR Elec.Eur/Mwh] – [API2 $/mT / (6.9784 * Efficiency factor)]/EURUSD Italy – Thomson Reuters IT Spreads DARK IT = [IT Elec.Eur/Mwh] - [API2 $/mT / (6.9784 * Efficiency factor)] /EURUSD Netherlands – Thomson Reuters NL Spreads DARK NL = [NL Elec.Eur/Mwh] - [API2 $/mT / (6.9784 * Efficiency factor)] /EURUSD API2 Coal - <0#TRAPI2:> Efficiency Factor for Coal – 36% API Coal Heat Factor – 6.9784 Conversion: EURUSD = RIC <EUR=X> GBPUSD = RIC <GBP=X> CLEAN SPARK SPREAD The Clean Spark Spread is calculated using a gas emissions intensity factor. Therefore the Clean Spark Spread is calculated by subtracting the carbon price (multiplied by ratio Gas) from the Spark Spread. i.e. Clean Spark Spread = Spark Spread – [Carbon price(CO2)*ratio Gas] CLEAN DARK SPREAD The Clean Dark Spread is calculated using a coal emissions intensity factor. Therefore the Clean Dark Spread is calculated by subtracting the carbon price (multiplied by ratio Coal) from the Dark Spread. i.e. Clean Dark Spread = Dark Spread – [Carbon price(CO2)*ratio Coal] FORMULAS TO CALCULATE CLEAN SPARK & CLEAN DARK SPREAD FOR THE FOLLOWING COUNTRIES: Germany: Thomson Reuters DE Clean Spark Spread = [SPARK SPREAD DE] - [CO2*ratio Gas] Thomson Reuters DE Clean Dark Spread = [DARK SPREAD DE] - [CO2*ratio Coal] France: Thomson Reuters FR Clean Spark Spread = [SPARK SPREAD FR] - [CO2*ratio Gas] Thomson Reuters FR Clean Dark Spread = [DARK SPREAD FR] - [CO2*ratio Coal] Italy: Thomson Reuters IT Clean Spark Spread = [SPARK SPREAD IT] - [CO2*ratio Gas] Thomson Reuters IT Clean Dark Spread = [DARK SPREAD IT] - [CO2*ratio Coal] Netherlands: Thomson Reuters NL Clean Spark Spread = [SPARK SPREAD NL] - [CO2*ratio Gas] Thomson Reuters NL Clean Dark Spread = [DARK SPREAD NL] - [CO2*ratio Coal] Emissions (CO2) - <0#TREUA:> Ratio Gas - 0.38 Ratio Coal - 0.90 Conversion = GBPEUR = RIC <GBPEUR=X CONVERSION FACTOR Conversion Table Description Conversion from PLN to EUR RIC Constant <PLNEUR=X> Conversion from Therm/MWH 0.0293071 Conversion from £/pence 0.01 Conversion from Pound(£) to Euro(E) <GBPEUR=X> Conversion from Euro(E) to USD($) <EUR=X> Conversion from GBP(GB£) to USD($ <GBP=X> Conversion from GBP(GB£) to Euro(E) <GBPEUR=X> Gas Efficiency Factor 50% Gas Efficiency Factor (GB Spark) 49.13% Coal Efficiency Factor 36% API Coal Heat Factor 6.9784 Ratio Gas 0.38 Ratio Coal 0.9 Full information can be viewed on TR EIKON under below page <TRPC/INFO>