Energy Efficiency in the Building Sector;

Norwegian approach, methods and tools applicable in Slovakia ?

Costs...and then weimplemented energy saving measures

Trond Dahlsveen, ENSI - Energy Saving International AS

ENSI® - Energy Saving International AS

AlbaniaAzerbaijan

Belarus

Bosnia & Herzegovina

Bulgaria

Croatia

Estonia

Georgia

PolandRepublic of Slovakia

Romania

Serbia

The Czech Republic

The Russian Federation

UkraineUzbekistan

HungaryKazakhstan

Kyrgyzstan

Latvia

Lithuania

Macedonia

Moldova

Montenegro

16 years of international experience in 26 countries, mostly Central and Eastern Europe and CIS:

Technical Assistance/Capacity Building Consultant

(energy, energy efficiency, renewables and the environment)

….. and Sweden and China

Norwegian - Slovakian co-operation: first presentation of Norwegian methods and tools in 1991

Training of Energy Advisors &Training of Students at the Technical University in Bratislava

Why is Energy Efficiency important in Norway?

Energy consumption for heating, ventilation and cooling could be very high without focus on energy efficiency

High requirements to the indoor environment High no. of m2 per person “Artic” winters and “Mediterranean” summers

Norwegian energy efficiency knowledge and experience well developed during decades; architects, consultants and experts

Regulations and standardsEducation, training and capacity building; local experts and energy managers Informational dissemination and awareness raisingEnergy efficiency grants and loans for investmentsDemonstrationsR&D projectsSpecial campaigns ………

Norway policy on Energy Efficiency in Buildings;

a variety of measures supporting the market development

Norwegian energy efficiency knowledge and experience “exported” for several years – supporting local and regional sustainable development.

Business Planning

Energy Auditing

Implementation

Operation

Identification

Scanning

Capacity Building on Project Development, Financing, Implementation and Operation/monitoring

Train local consultants and experts to offer professional services to identify, develop, arrange financing, implement and manage energy efficiency projects.

Efficient Capacity Building:Combined Training and Project Development

Session 1

Session 2

Session 3

Result:

Projects developed, ready for implementation

Homework

Homework

Homework

Site visits

Site visits

Energy Auditing of Buildings

Existing building

+

Inspection and evaluation/analysis by

consultant

Energy AuditReport

Building xx=

Energy Audit Report

Measures Investment Net savings Payback NPVQ

[USD] [kWh/yr] [USD/yr] [year]

1. Energy efficient showers 400 3 495 450 0,9 6,90

2. Automatic control system 20 000 127 703 12 270 1,6 3,31

3. Operation and maintenance manuals / Energy monitoring system

15 000 31 365 2 140 7,0 0,51

4. Heat recovery, ventilation system

25 000 47 243 4 510 5,5 0,27

5. Balancing of heating system and thermostatic valves

22 500 30 484 3 050 7,4 0,23

6. Insulation of pipes, valves etc. 9 500 16 350 1 640 5,8 0,21

7. Insulation of attic floor 12 500 19 690 1 970 6,4 0,11

Profitable ENCON measures 104 900 276 330 26 030 4,0

Multidisciplinary energy calculations

Energy Audit Report, presenting savings potential

ENSI® Software calculating the Energy Performance of Buildings

Software to be used by Energy Auditors/Experts(EN ISO 13790)

EU Harmonization:the ENSI Methods and Software in Bulgaria

The Minister of Energy of Bulgaria announcing the Bulgarian version of the ENSI tools as approved for implementing the EU Directive on the Energy

Performance of Buildings (March 2005)

Project Implementation - Norwegian ExperienceEnergy consumption

[kWh/year]

Time [years]

Optimum operation

Before Energy Efficiency

After Energy Efficiency

Solution: Energy ManagementSolution: Energy Management

Energy consumption[kWh/m² week]

Mean outdoortemperature [°C]

15

10

5

20100-10-20

The ET- Curve

?

Energy consumption[kWh/m²week]

Mean outdoor temperature [°C]

15

10

5

20100-10-20

Deviations - what is wrong?

Hot water leakage?

New and existing buildings:

Energy management programme for building operation of great importance

Oslo Central Station

Management Programme for 70.000 m2 existing buildings and facilities:

Energy consumption was reduced by 40% over 7 years (from 4 to 70 energy meters)

Water consumption was reduced by 50 %

Daily visited by 160.000 people, in total 60 mill/year – The most visited house in Norway

Financing of projects

International Financial Institutions

There are nogood projects

Owners of good projects

It is impossible to get a loan

BusinessPlan

Financial Engineering

Session 1

Session 2

Session 3

Municipalities owning/managing several buildings:

Hospitals

Schools

Kindergartens

Offices

……

“Municipal Energy Efficiency Planning”

Energy costs

Other costs

Energy efficiency and renovationIncreasing energy

prices

What to do ?Where to start ?Budget consequences ?Available experts ?

What to do ?Where to start ?Budget consequences ?Available experts ?

Municipal Energy Efficiency Plan

Municipal budgets

Mayor

Vice MayorEducation

… … …Finance Investments Energy Housing Education Construction

Energy Efficiency Team Leader

Vice MayorEconomy

Vice MayorHousing

Energy Efficiency Teamto be established, integrated in the City Administration structure

Stage 3

Actions acc.

EE Plan

Actions acc.

EE Plan

Implementation of EE Plan in progress.

Implementation of EE Plan in progress.

Consult. support

Consult. support

Session 1

Session 2

Session 3

Energy Efficiency Plan developed.

Energy Efficiency Plan developed.

Stage 2

Norwegian Programme in three stages

Stage 1

Session 1

Session 2

Session 3

Trained specialists.Situation described.

Trained specialists.Situation described.

Almaty City, Kazakhstan Population: 1,5 million

No of municipal buildings: 735 (Schools, kindergartens, hospitals, etc)

Average age of the buildings: 30 years

Yearly energy cost: 8,5 million USD

Municipal Energy Efficiency Programme started 2005 (Capacity

building and establishment of EE Team)

0

5

10

15

20

25

30

Nu

mb

er

of

ne

w b

uild

ing

s

1930

1932

1934

1936

1938

1940

1942

1944

1946

1948

1950

1952

1954

1956

1958

1960

1962

1964

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1968

1970

1972

1974

1976

1978

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

Almaty, Municipal buildings, year of construction

1940 1950 1960 1970 1980 1990 2000

252

0

15

10

5

Year of construction

High air pollution Old municipal buildings

Actions 2007 2008 2009

Scanning (no. of buildings) 40 100 100

Energy Audit (no. of buildings) 20 40 40

Implement projects (no. of buildings) 28 40 40

Energy Monitoring (no. of buildings) 28 40 50

Update database (no. of buildings) 735 735 735

Residential database (no. of buildings) 3 000

Energy Passports (no. of buildings) method 150 150

Information activities, training

Total investments (USD) 1 160 000 720 000 785 000

Expected savings (USD/year) 115 000 165 000 165 000

Accumulated savings (USD/year) 280 000 445 000

Plan 2007 - 2016 approved in the City Council June 2007 Expected results: Energy Costs in the city budget reduced by 25 %

Plan 2007 - 2016 approved in the City Council June 2007 Expected results: Energy Costs in the city budget reduced by 25 %

Business Planning

Energy Auditing

Implementation

Operation

Identification

Scanning

Norwegian Methods and Tools Applicable !

Costs...and then weimplemented energy saving measures

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