Rgas Tehnisk universitte Enertikas un elektrotehnikas fakultte Vides aizsardzbas un siltuma sistmu institts www.videszinatne.lv Renewables vs Fossil Fuels Dr. Dagnija Blumberga profesor, Director of Institute of Energy Systems and Environment Dr. Andra Blumberga profesor, Riga Technical University
2 Development of Energy Sector in Latvia Share of renewable energy resources in 2020 EU 20% Latvia 40% Is it possible for Latvia ro reach target? Vides aizsardzbas un siltuma sistmu institts
3 RES target for Latvia (info: Ministry of Economy December,2009) Vides aizsardzbas un siltuma sistmu institts
4 Primary Energy use. Alternative Scenario Kopj PER piegde elektroenerija 60000 bioetanols un biodzedegviela 50000 citi resursi (salmi,kdra) naftas produkti un degakmens ea 40000 ogles (ietver koksu un nolietots riepas) GWh 30000 dabasgze biogze 20000 koksne 10000 0 2007 2010 2012 2014 2016 2018 2020 Vides aizsardzbas un siltuma sistmu institts
5 Development of Latvian energy sector. Alternative 1. Investments in Natural gas power station 400 MW + 400 MW + ... or Coal power station 400 MW or Nuclear power station ??? Vides aizsardzbas un siltuma sistmu institts
6 Development of Latvian energy sector.Alternative 2 Investments in Energy efficiency improvements Development of renewable energy resources: Biomass cogeneration 120 MWe + 5 cities * 50 MWe Wind energy 1000 MWe offshore 500 MWe onshore Replacement of natural gas installations in DH and decentralised systems Vides aizsardzbas un siltuma sistmu institts
7 Some economical calculation Vides aizsardzbas un siltuma sistmu institts
8 Some Economical Calculations for RES today Data from Latvenergo (published B&B 05/05/2010) about green energy additional costs Market price 21 (28) Ls/MWh Higher tariff than market price of electricity 70 Ls/MWh -21 (28) Ls/MWh = 49 (42) Ls/MWh Paid green energy in 2009 150 000 MWh/year Total exceeded payment for green energy 49 (42) Ls/MWh * 150 000 MWh/year = 7,35 (6,36) million Ls/year Vides aizsardzbas un siltuma sistmu institts
9 Some Economical Calculations. Alternative 1 Costs for RTEC 2 -2 step (with no heat load for DH system in Riga). No data available from Latvenergo Investments costs 35 million Ls/year July 2012 fuel costs 55 Ls/MWhe + 85 Ls/MWh + x/MWhe = 140 Ls/MWhe + 20 Ls/MWh Market price 21 (28) Ls/MWh Higher tariff than market price of electricity 160 - 21 (28) = 139 (132) Ls/MWh Vides aizsardzbas un siltuma sistmu institts
10 Comparison of electricity purchase tariffs Large natural gas power stations has uppermost support in Latvia ~ 160 Ls/MWh Larger natural gas power stations 400 MWe has higher support than smaler cogeneration RES E from biomass power station has less support ~ 100 Ls/MWh than large natural gas power station Vides aizsardzbas un siltuma sistmu institts
11 Some Economical Calculations. Alternative 1 Import increases: Natural gas use costs RTEC 2 -1step 18 000 000 144 000 000 Ls/year RTEC 2 -2step 22 000 000 176 000 000 Ls/year Greenhouse gases increase RTEC 2 -1step 1,6 million 12,8 milion t CO2/year RTEC 2 -2step 1,6 million 12,8 milion t CO2/year In 20 years Latvia will pay for import of natural gas for 2 RTEC -2 6 - 8 bilion Ls Vides aizsardzbas un siltuma sistmu institts
Ls / MWh 10 15 20 25 30 35 40 45 50 55 60 "Ludzas Bio-Enerija"/"Ludzas Apsaimiekotjs" Talsi -"Bio - Enerija" Valka "Madonas Siltums" "Kuldgas Siltumtkli" "Tukuma Siltums" Alksne - "Simone" Ventspils "Limbau Siltums" "Krslavas Nami" "Valmieras Siltums" "Paviu KP Heat energy tariffs "Komforts", Tukums "Vangau Namsaimnieks" "Aizkraukles Siltums" Ogres PA "Mlkalne" Bauskas siltums "Rgas Siltums" "Wesemann - Sigulda" "Lielvrdes Remte" "Jkabpils Siltums" Vides aizsardzbas un siltuma sistmu institts Csis, SIA "CB" "Daugavpils Siltumtkli" "Saldus Siltums" Apstiprintie Latvijas pilstu siltumtarifi 2008./2009. apkures sezon, bez PVN Sarkans - koenercija, za - elda, prjie - pamat dabasgze vai cits kurinmais Rzekne "Fortum Jelgava" "Jrmalas Siltums" Olaine "Salaspils Siltums"
