Energy efficient renovation of buildings – one of the main

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Energy efficient renovation of buildings – one of the main
Energy efficient renovation of buildings –
one of the main energy efficiency
improvement measures
Juris Golunovs, Head of Energy Efficiency Information Centre of Riga Energy Agency
Meeting with the delegation of the land of Schleswig – Holstein (Germany), Riga,
19.09.2012
Covenant of Mayors
It means that by 2020 the city commits itself to
reduce CO2 emissions by at least 20 % by
improving energy efficiency by 20 % and by
ensuring that renewable energy sources
account for 20 % of volume of energy to be used
Tools: SEAP & CO2 Baseline Inventory
The baseline C02 emission Inventory for Riga
• The baseline emission have been calculated for
year 1990; 1995; 2005; 2008 (CO2 emissions);
• Projection of emissions for year 2010; 2015 and
2020 have been evaluated;
• Standard emission factors in line with the IPCC
principles have been chosen;
• Country specific CO2 EF for primary energy
have been implemented
Calculated CO2 emissions in Riga 1990 -2008
thous t 5000,0
Transport
4500,0
Final fuel consumption
Electricity consumption
4000,0
DH consumption
3500,0
3000,0
2500,0
2000,0
1500,0
1000,0
500,0
0,0
1990
1995
2000
2005
2008
Projected CO2 emissions in Riga for different scenarios
thous t CO2
4500
reference
scenario
4000
3500
Scenario Min
3000
Scenario Opt
2500
Scenario Max
2000
1500
1990 1995 2000 2005 2008 2010 2015 2020
The projections of CO2 emissions in Riga
• The key sources of CO2 emissions in year
2020 could be transport sector (up to 34%),
DH consumption (32%), final fuel
consumption (18%) and electricity
consumption(16%);
• Projected reduction of CO2 emissions in Min
scenario in year 2020 is 44,7%; Opt scenario
46,3% and Max scenario scenario 47,9%
compare with base year 1990.
The main demand side measures for CO2
emission reduction in Riga
Measure
Energy saving or
substitution, year 2020,
Max scenario, GWh
Renovation of multi dwelling
residential buildings
780
Renovation of municipal buildings
81
Solar collectors in decentralised
heat supply
25
Heat pumps in decentralised heat
supply
48
Biofuel for transport
330
Evaluated potential of demand side emission reduction
measures, year 2020
250
thous t CO2
Electric cars in transport
Biofuel in transport
200
solar heat collectors
heat pumps in decentralised
heat supply
Renovation of municipal
buildings
150
100
Renovation of multi dwelling
residential buildings
Total "Rigas Siltums"
50
0
Min
Opt
Max
Public building sector of Riga municipality
owned buildings and energy efficiency key
. figures before refurbishment
Specific annual energy consumption [kWh/m2]
of multi-apartment building stock in Riga city
neighbourhoods
before refurbishment
.
Selecting the extent of energy efficient
renovation of buildings [kWh/m2]
.
Aims of energy efficient renovation in the multiapartment building stock of Riga (Riga SEAP)
2001: The first energy efficient renovation in Riga
2004 – 2008: energy efficient renovation of few
multi-apartment buildings
2010: Continious growth of number of energy efficiently
renovated apartment buildings in Riga
Riga Energy Agency performs monitoring of
renovation results –specific energy consumption per
square meter of heated floor area
kWh/m2
Example of on-site monitoring
Potential sources of funding of energy
efficient renovation of buildings
Complex renovation of multi-apartment Reserves, Structural Funds, loan
houses
resources, revolving fund, national and
municipality aid measures, ESCO,
MESCO
Complex renovation of municipal
public buildings in Riga
Funding from the flexible mechanisms
of the Kyoto Protocol, budget of the
municipality
Thank you for your kind
attention!
http://www.rea.riga.lv

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