BSB JOP Project BSBEEP

Black Sea Buildings Energy Efficiency PlanGA2 - Preparation for implementation -

Analysis of internal current situationCONTENT AND METHODOLOGY

(Activities 2.1 and 2.4) The 2nd Project Meeting

Yerevan (Armenia)9-10 of December 2013

Nicolae Badea – external expertNicolae Badea – external expertMunicipality of GalatiMunicipality of Galati RomaniaRomania

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Activity 2.1 - Energy-auditActivity 2.1 - Energy-audit

Assessment of energy consumption and other environmental data by applying conventional and

thermographic methods. Selected evaluation targets.

1. Energy Assessment as Part of Energy Management

Energy management strategies

The information and methods needed may vary respectively, depending on the location at which the activities are carried out

Levels of energy management and assessment

The information and methods needed may vary, depending on the location at which the activities are carried out:

A general energy assessment includes:

■ Analysis of energy streams in the target, which may be a building stock or portfolio or an individual building or system

■ Evaluation of existing saving potentials in the target

■ Development of recommendations on an effective utilization of energy

The scope and depth of the assessment may vary:

Levels of the energy assessments

The assessment consists of the following phases of work:

Phases of an energy assessment

When energy assessment results are available, a detailed action plan must be prepared to ensure a systematic implementation of energy performance measures by sorting out the buildings with the best potential for energy savings.

2. Sustainable Energy Action Plans (SEAPs)

The template includes three main parts dedicated to:

Long term vision and overall strategy (the overall CO2 emission target foreseen, the priority areas of action, the attribution of staff and financial capacities)

Key results of the Baseline Emission Inventory (indicating the current level of energy consumption and identifying the principal sources of CO2 emissions):

A. Final energy consumptionB. CO2- or CO2- equivalent emissionsC. Local electricity production and corresponding CO2 or CO2- equivalent

emissionsD. Local district heating/cooling, CHP and corresponding CO2- and CO2-

equivalent emissions

Key elements of the Sustainable Energy Action Plan

The final target of the action plan

Ongoing/continuous improvement of energy performance

Table A. Final energy consumption (1)

Final energy consumption

CategoryElectrici

tyHeat/cold

Fosil fuel Renewable energies Total

Natural gas

Liquid gas

Heating oil

Gasoline

Lignite

Coal

Other fosil fuel

Plant oil

Biofuel

Other biomas

Solar thermal

Geo-thermal

BUILDINGS, EQUIPMENT/FACILITIES AND INDUSTRIES

Municipal building, equipment/facilities

Tertiary(non municipal)

Residential building

Municipal public lighting

Industries(excluding ETS industry)

Subtotal buildings

Table A. Final energy consumption (2)

Transport

Municipal fleet

Public transport

Private commercial transport

Subtotal transport

Total

Municipal purchases of certifiedgreen electricity (if any) (mwh)

co2 emission factor for certifiedgreen electricity purchases(for lca approach)

Table B. CO2 OR CO2 EQUIVALENT EMISSIONS (t) (1)

CO2 OR CO2 EQUIVALENT EMISSIONS (t)

CategoryElectri

cityHeat/cold

Fosil fuel Renewable energies Total

Natural gas

Liquid gas

Heating oil

Gasoline

Lignite

Coal

Other fosil fuel

Plant oil

Biofuel

Other biomas

Solar thermal

Geo-thermal

BUILDINGS, EQUIPMENT/FACILITIES AND INDUSTRIES

Municipal building, equipment/facilities

Tertiary(non municipal)

Residential building

Municipal public lighting

Industries(excluding ETS industry)

Subtotal buildings

Table B. CO2 OR CO2 EQUIVALENT EMISSIONS (t) (2)

Transport

Municipal fleet

Public transport

Private commercial transport

Subtotal transport

Other

Waste management

Waste water management

TOTAL

corresponding CO2-emissionfactors in [t/mwh]

CO2 emission factor for electricitynot produced locally [t/mwh]

3. Assessment of the energy consumption and other environmental data with the application of conventional and thermographic methods

Energy audit of a building is a systematic procedure which aims to evaluate the building’s existing energy consumption, to identify the potential energy savings and to report the findings.

The energy audit consists mainly of collecting and measuring data that are valuable for the energy assessment of the building.

The methodology for energy audit shall include at least the following aspects:

the building shell thermal characteristics, position and orientation, passive solar systems and solar protection, etc.

the technical building systems and uses heating installation, hot water supply, air-conditioning installation, ventilation, natural ventilation, built-in lighting.

3.1 EN 15217 provides methods that are required to express the energy performance (EP) of buildings.

The certificate can be based on either the 'measured' (or “operational”) or the 'calculated' (or “asset”) rating. Both indicators have their pro’s and con’s.

3.2 Thermographic and conventional methods for buildings audit

• Building Thermography - it is crucial to detect in detail the defects of the building external elements

• The seasonal method of the standard EN 13790 “Energy performance of buildings - Calculation of energy use for space heating and cooling”

• The degree-day method to estimate the building heating/cooling consumption at municipality level

The necessary steps/ContentThe necessary steps/Content

1. Introduction

It will include general information regarding activity’s subject and notions. Issues such as significance of accomplishing the specific energy audit activity:

• EPBD implementation stage, the legal national / local framework, administrative framework , date of application for buildings (new or refurbishment );

• type and content of the certificate of energy performance of buildings;

• the local / national accreditation of energy auditors.

DEADLINE:

The necessary steps/ContentThe necessary steps/Content

2. The Municipality building stock

2.1 The climatic conditions of the municipality (environmental data)

Example for Galati

The necessary steps/Content proposalThe necessary steps/Content proposal

2.2 Determination of Seasonal Climate by Use of Monthly Average Data

The necessary steps/Content proposalThe necessary steps/Content proposal

2.3 The existing buildings stock by age categorization (built before 1981, 1981-1999, after 2000)

2.3.1 Residential building stock

2.3.2 Non- residential building stock

2.4 The building materials categorization of the municipality buildings

2.4.1 Residential buildings: single family houses; apartment blocks

2.4.2 Non-residential buildings: office buildings; educational buildings; hospitals; others ( e.g Sport facilities , social houses , commercial , hotels etc).

The necessary steps/Content proposalThe necessary steps/Content proposal

3. The annual heating consumption & system (energy mix- RES, District heating, electricity, gas, oil, solid fuel) of the municipality buildings

3.1 Type of heating installation and fuel

3.1.1 Residential heating installation and fuel: single family houses, apartment blocks

3.1.2 Non- residential heating installation and fuel: office buildings; educational buildings; hospitals; others.

3.2 Annual heating consumption of the municipality buildings (degree-day method)

The necessary steps/Content proposalThe necessary steps/Content proposal

4. The annual cooling consumption and system (energy mix- RES, electricity - compression chiller, absorbtion /adsorbtion chiller) of the municipality buildings

4.1 Type of cooling installation and fuel

4.1.1 Residential cooling installation and fuel: single family houses; apartment blocks

4.1.2 Non- residential cooling installation and fuel: office buildings; educational buildings; hospitals; others.

4.2 Annual cooling consumption of the municipality buildings

The necessary steps/Content proposalThe necessary steps/Content proposal

5. The annual power consumption ( grid connection, cogeneration systems , RES) for municipality buildings

5.1 Type of power installation and fuel

5.1.1 Residential power installation and fuel: single family houses, apartment blocks

5.1.2 Non-residential power installation and fuel: office buildings; educational buildings; hospitals; others.

5.2 The annual fuel consumption for electricity of the municipality buildings

The necessary steps/Content proposalThe necessary steps/Content proposal

6. The annual Domestic Hot Water consumption (energy mix- RES, District , electricity, gas) for municipality buildings

6.1 Type of power installation and fuel

6.1.1 Residential DHW installation and fuel: single family houses, apartment blocks

6.1.2 Non- residential DHW installation and fuel: office buildings; educational buildings; hospitals; others.

6.2 The annual fuel consumption for DHW of the municipality buildings

7. Comparison and ConclusionsThe energy performance of a building depends on:

• building properties, resulting in an energy need; • technical systems, resulting in a required delivered energy; • weighting of the delivered energy.

The 3 main steps in energy performance calculation

Energy performance = weighted delivered energy – weighted exported energy

ipiidelpidelp fEfEE exp,,exp,,,,

Where :

pE - The primary energy demand

idelE , - Final energy demand of energy carrier i

idelpf ,,

iEexp,

ipf exp,,

- Primary energy factor for demand energy carrier i

- Exported final energy of energy carrier i

- Primary energy factor for export energy carrier i

Activity 2.4 Activity 2.4 Recording and pre-selection of potential building-targets for the implementation of corrective actions

(pilot demonstration projects)

(Based on Activities 2.1 and 2.2)

Draft template/ContentDraft template/Content

1. Defining the building / buildings to determine energy performance

2. Establishing the geographical, climatic, orientation and surroundings

3. Defining the structural characteristics and the composition of the building envelope

4. Establishing the energy performance of buildings

Deliverables DescriptionDeliverables Description

1. Cadastral plan of the building (geometrical characteristics), the area developed, occupancy status, type of thermal inertia of the building, age of building, shading factor

2. Type of building (dwellings, office, schools, etc.) and the insulation of the buildings, thermo-technical characteristics of building materials

3. Defining the types and quality of interior installations; Setting source energy; nature of heat used (water, air, etc); energetic class; building energy scale after corrective actions.

Methodology proposal Methodology proposal

The seasonal method of the standard EN 13790 “Energy performance of buildings - Calculation of energy use for space heating and cooling”

Thank you for your attentionThank you for your attention!!

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