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Page 1: Energy management information system in public buildings

07.04.2015 Seite 1

EMIS – ENERGY MANAGEMENT

INFORMATION SYSTEM IN

PUBLIC BUILDINGS

April 2014

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Energy efficiency in RS –

legislative framework

Source: Law on Efficient Use of Energy, OG of RS 25/13

The Law on Efficient Use of Energy regulates:

• The conditions and manner of efficient energy consumption in the sectors of energy generation, transmission, distribution and consumption;

• Efficient energy consumption policies;

• Energy management system;

• Energy efficiency labeling of products which have impact on energy consumption;

• Minimum requirements of energy efficiency in the generation, transmission and distribution of electricity and heat energy and supplying of natural gas;

• Financing, incentives, and other measures in this field and other issues relevant for the rights and obligations of natural and legal persons with respect to efficient energy consumption.

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Energy efficiency policy

Source: Law on Efficient Use of Energy, OG of RS 25/13

The key documents determining the policy of efficient energy consumption include:

• Energy Sector Development Strategy of the RS;

• Programme for implementation of the Energy Sector

Development Strategy of the RS;

• National Action Plan for Energy Efficiency in the RS;

• Programs and plans of energy efficiency adopted by local

governments;

• Programs and plans of energy efficiency adopted by other

mandatory actors within the energy management system.

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Source: Law on Efficient Use of Energy, OG of RS 25/13

Energy management:

• The subjects of the energy management system include: the

Government, the Ministry, the designated organizations of the

energy management system, energy managers and certified

energy auditors;

• The Government as a subject of the energy management system

adopts regulations in the field of efficient energy consumption,

at the proposal of the Ministry, and in accordance with the Law

on Efficient Use of Energy.

The Law on Efficient Use of Energy

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Designated organizations of the energy management

system:

• Companies whose core activity is in the manufacturing sector, if they

consume more energy than prescribed by the Government;

• Companies whose core activity is in the sector of trading and

services, if they consume more energy than prescribed by the

Government;

• Companies whose core activity is in the manufacturing sector, but

are not mandatory subjects under the above two items, and posses

facilities which jointly consume more energy than prescribed;

• Bodies of public administration and other authorities of the Republic

of Serbia, authorities of the autonomous province, authorities and

bodies of local self-government with a population exceeding 20,000,

and other public services using publicly owned buildings.

Energy management

Source: Law on Efficient Use of Energy, OG of RS 25/13

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Designated organizations of the system are obliged to:

• Achieve the planned targeted energy savings prescribed by the Government;

• Appoint the necessary number of energy managers;

• Adopt the energy efficiency program and plan and submit them to the Ministry, at its request;

• Implement measures for efficient consumption of energy included in the program and the plan;

• Notify the Ministry of the person appointed as energy manager and the person authorized on behalf of the subject, apart from the manager, to sign annual reports;

• Submit to the Ministry its annual reports on achieving the objectives contained in the program and the plan;

• Ensure implementation of energy audits at least once in five years, except when otherwise prescribed by the Law;

• Undertake also other activities and measures in compliance with the Law.

Energy management

Source: Law on Efficient Use of Energy, OG of RS 25/13

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Energy manager

• natural person appointed by the designated organization,

whose obligations are especially to:

o Collect and analyze data regarding energy consumption by the subject;

o Draft programs and plans prescribed by the Law;

o Propose measures which contribute to efficient use of energy and take

part in their implementation;

o Ensure the preparation of the annual report in accordance with the

Law;

o Undertake other activities and measures prescribed by the Law.

• The tasks of the energy manager can be performed by a person

holding the license for energy managers.

Energy management

Source: Law on Efficient Use of Energy, OG of RS 25/13

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By-laws regulating energy management in more detail:

• The Rule Book on the manner of implementation and content of

trainign program for energy managers, expenditures for attending the

training courses, and detailed conditions, curriculum, and taking of

the examination for energy managers, the Official Gazette of RS 12/15

o The above rulebook prescribes the manner in which training is delivered,

the content of theoretical and practical training for energy managers, the

amount and manner of payment of costs related to energy manager

training, and detailed conditions, the curriculum and taking of the

examination for energy managers.

• The Rule Book on conditions regarding human resources, equipment

and premises of organizations delivering training for energy managers

and authorized energy advisors, the Official Gazette of RS 12/15

o The above rulebook prescribes details with respect to human resources,

equipment and premises of organizations delivering theoretical and

practical training for energy managers and authorized energy auditors

Energy management

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About the Project

Introducing the Energy Management Information System -

EMIS (Serb. ISEM) in public buildings

National partner: The Ministry of Mining and Energy

UNDP donated the developed web-based software application for the

monitoring, analysis and reporting on energy and water consumption in

public buildings

The Ministry provided the hardware and the system software and, in

cooperation with the UNDP, implemented the training for system

administrators and the first group of end users.

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About the Project

Activities which preceded the Project:

• Providing the hardware, the system software and the hosting;

• ISEM installation;

• Training of system administrators;

Project activities:

• Training the pilot group of end users. Training was delivered by the

national system administrators;

• Adjustments to the ISEM (in parallel with the training);

• Technical assistance to end users in collecting data;

• Anylysis of collected data and reporting;

• Detailed adjustments to the ISEM for long-term use in Serbia.

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Obligations of end users

Obligations of end users of ISEM:

• Attending one-day training course;

• Establishing cooperation with the mentor who will allocate access

to ISEM for the user;

• Data collection:

o Each participant is expected to collect data about one public

building and data about consumption of energy, energy sources,

and water for the year 2014.

o Source of data: invoices for energy, energy sources, and water.

• Introducing ISEM for onward monitoring of consumption of energy,

energy sources, and water starting in January 2015.

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UNDP System administrators

Maja Matejić, MSc.

Portfolio Manager - Energy

United Nations Development Programme

Tel. 011 2040 449

e-mail: [email protected]

Miloš Krivokuća, BSc.

ICT Associate – Head of ICT Unit

United Nations Development Programme

Tel: 011 2040 488

e-mail: [email protected]

Support to end users

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ISEM

What is the purpose of ISEM?

It is the basic tool for energy management in public buildings

and municipalities

Basic function

Collecting data on actual energy and water consumption in

public buildings

Establishing a national data base on energy and water

consumption in public buildings

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How is data collected?

Manually

By entering data from invoices for energy (electricity, gas,

district heating), energy sources (gas, coal, fuel-oil, crude,

firewood, etc.) and water;

By entering data read from meters and counters;

Automatically

By importing data from relevant meters and counters

equipped for remote reading.

ISEM

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ISEM – Online metering

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ISEM – Online metering

Faculty of Mechanical Engineering in Belgrade

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ISEM

The purpose of ISEM?

Recording public buildings and relevant data concerning

buildings;

Analysis of energy and water consumption;

Calculation of energy indicators for public buildings and

comparison with buildings of the same category in the country

and abroad;

Recording undertaken energy efficiency measures in public

buildings and monitoring their actual performance;

Identification of energy efficiency projects;

Development of energy efficiency projects;

Raising awareness of and promoting energy efficiency.

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ISEM connected to the web portal

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ISEM connected to EE Panel

Faculty of Mechanical Engineering in Belgrade

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ISEM connected to EE Panel

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ISEM

Why is it important?

It enables us to know the actual consumption of energy and

water by a public building and the price for it;

It enables identification of acute problems (excessive energy

consumption or water losses) and taking of corrective actions;

It enables management of energy and water budgets for public

buildings;

Provides the basis for project preparation in order to apply for

funding from different sources;

Provides the basis for designing of public procurement for

energy and energy sources;

Provides the basis for contracting performances, or ESCO

projects.

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Which buildings is ISEM intended for?

1. Buildings falling within the competences of local self-governments

(schools, kinder-gartnes, municipal administrative buildings, sports

centers, primary health care centers, PUC’s buildings, etc.);

2. Buildings falling within the competences of national authorities

(buildings of public administration, courts, hospitals, gerontology

centers, faculties, students’ dormitories, military barracks, prisons,

PUC’s buildings, etc.);

3. Buildings falling within the competences of indirect budget

beneficiaries;

4. Buildings falling within the competences of other organizations and

public companies;

5. ISEM can also be used for commercial buildings!!!

ISEM

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The adjustments are underway for the use of the

software in Serbia, covering: • Adjusting the terminology;

• Changing the geo-administration;

• Changing the categorization of buildings;

• Changing the names in the hierarchy of users;

• Entering data on users of public buildings in Serbia;

• Entering data on suppliers of energy and water from Serbia;

• Entering data on meteo-stations in Serbia, etc.

The ISEM still does not have sufficient data for all

training courses which are necessary and therefore ISGE

is used for demonstration on the software operation

ISEM in Serbia = ISGE in Croatia

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ISEM – User hierarchy

ISEM hierarchy

Serbia:

1. National system

administrator

2. Energy manager

3. Energy administrator –

local decision maker

4. User

5. Guest

ISGE hierarchy

Croatia:

1. National system

administrator

2. Energy administrator

3. Energy manager – local

decision maker

4. User

5. Guest

=

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ISEM – http://isem.undp.org.rs/

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ISGE – www.isge.hr

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ISGEBIH – www.isge.ba/ISGEBIH3

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Organization of data collection in

Serbia 2 system administrators

(presently UNDP, later MME)

En. manager En. manager En. manager En. manager

User 1

User 2

User 3

User n

User 1

User 2

User 3

User n

User 1

User 2

User 3

User n

User 1

User 2

User 3

User n

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Manages users • Defines users;

• Supervises their work.

Manages buildings • Defines buildings and links them to relevant users;

• Defines building users and sources of building financing;

• Defines meters, counters, and water meters in buildings;

• Defines other measuring systems in buildings.

Develops reports and graphs, performs analyses

Performs geo-administration

Performs energy-administration • Defines energy sources;

• Defines suppliers;

• Defines energy systems.

The role of administrator

1

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Performs data entry on buildings • General data;

• Structural data;

• Data on systems consuming energy or water;

• Energy data;

• Documents.

Performs data entry for energy, energy sources, and water.

Performs entries from reading from meters, counters or

water meters, or the relevant parameters such as user

number, indoor temperature, etc.

Performs basic analyses and generates basic reports.

The role of users

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Guidelines for users

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Building definition

Basic user

User

Sub-user

Region

District

Municipality

Meters and counters

Energy sources

Suppliers HM

observatory

Address

Energy

systems within

buildings

Building structural

characteristics

Person in charge

of building

ISEM user

ISEM

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Energy cost centre (ETC) is a functional unit, or

building or part thereof, for which it is possible to

measure the relevant energy and water

consumption and other parameters affecting

consumption.

ETC is the subject of monitoring and discussion in

ISEM

Energy cost centers

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Energy cost centers

Stand-alone

building

Complex of buildings

Section of

building

Building inside a complex

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Energy cost centers

Energy cost centers

2

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Territorial organization of the Republic of

Serbia

4 regions

24 districts

169 municipalities

Geo-administration

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Serbia

SR-xyzw-pqrs-k

SR – Serbia

xyzw – municipality:

x=1-4 Region

y=1-9 Serial number of district within region

zw = Serial number of municipality within region

pqrs – serial number of building within ISEM

k=0 – Complex

k>0 – Serial number of building within complex

Example: SR-2707-1234-1

Stand-alone building in Stara Pazova entered in ISEM under serial

number 1234

Geo-administration

3

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Geo-administration

Examples

Example 1: SR-2707-1234-1

Stand-alone building in Stara Pazova, with

measuring points for the whole building entered

in ISEM under serial number 1234 for Stara Pazova

Example 2: SR-1112-1100-1-A

Part of stand-alone building in Belgrade, in city

Municipality Vračar, with separate measuring points

for that section of the building entered into ISEM

under serial number 1100 for Belgrade

4

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Geo-administration

Examples

Example 3:

SR-3504-1200-0

Complex of buildings in Kruševac, entered in ISEM under serial number 1200 for

Kruševac. A complex can be with or without common measuring points for the whole

complex

SR-3504-1200-1

Building number 1 within a complex

SR-3504-1200-0 in Kruševac entered under

number 1200. A building can and need not

have its own measuring points.

SR-3504-1200-2

Building number 2 within a complex of buildings SR-3504-1200-0 in Kruševac entered in

ISEM under number 1200. A building can and need not have its own measuring points.

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Buildings nomenclature

Classification of buildings in Serbia:

A. Buildings of educational institutions

B. Health care institutions

C. Collective accommodation buildings

D. Buildings of institutions of culture

E. Sports buildings

F. Administrative buildings

G. Public transport buildings

H. Hospitality buildings

I. Buildings of public companies or PUC

J. Other

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Buildings nomenclature

Code for

Type of group of

building

Type of group of

building

Code of

Type of building Type of building

Group of building

1 letter character Description

Sub-group of

buildings

2 characters

(numerical)

Description

A Buildings of educational

institutions 01 ---> Kinder-gartens / nurseries

02 ---> Elementary schools

03 ---> Secondary schools

04 ---> Colleges

05 ---> Faculties

06 ---> Special schools

99 ---> Other

B Health care institutions 01 ---> Infirmaries

02 ---> Primary health care centers

03 ---> Clinics

04 ---> Hospitals

05 ---> Stationary infirmaries

06 ---> Clinical centers

07 ---> Pharmacies

99 ---> Other

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Buildings nomenclature

Code for

Type of group of

building

Type of group of

building

Code of

Type of building Type of building

Group of building

1 letter character Description

Sub-group of

buildings

2 characters

(numerical)

Description

C

Collective

accommodation

buildings

01 ---> Homes for fireigners

02 ---> Students and pupils dorms

03 ---> Homes for children

04 ---> Correctional homes

---> Penitentiaries

---> Barracks

99 ---> Other

D Buildings of institutions

of culture 01 ---> Cultural centers

02 ---> Cinemas

03 ---> Theatres

04 ---> Museums

05 ---> Libraries

99 ---> Other

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Buildings nomenclature

Code for

Type of group of

building

Type of group of building Code of

Type of building Type of building

Group of building

1 letter character Description

Sub-group of

buildings

2 characters

(numerical)

Description

E Sports buildings 01 ---> Sports centers

02 ---> Outdoor swimming pools

03 ---> Indoor swimming pools

04 ---> Sports arenas

05 ---> Stadiums

06 ---> Skating rings

99 ---> Other

F Administrative buildings 01 ---> Sub-municipal offices

02 ---> Municipal admin. Buildings

03 ---> City admin. Buildings

04 ---> Public admin. Buildings

05 ---> Courts

06 ---> Police

99 ---> Other

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Buildings nomenclature

Code for

Type of group of

building

Type of group of building Code of

Type of building Type of building

Group of building

1 letter character Description

Sub-group of

buildings

2 characters

(numerical)

Description

G Public transport buildings 01 ---> Bus stations

---> Railway stations

---> Airports

99 ---> Other

H Hospitality buildings 01 ---> Kitchens

02 ---> Restaurants

03 ---> Resorts

04 ---> Motels

05 ---> Hotels

06 ---> Hostels

99 ---> Other

I PUC buildings 01 ---> Manufacturing parts of PUC

02 ---> Admin. Parts of PUC

99 ---> Other

Z Other 01 ---> Other

99 ---> Other

5

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Hierarchy of building users

TYPE OF ORIGINAL USER

ORIGINAL USER

BUILDING USER

BUILDING SUB-USER

Who provided the budget

for operational costs of

the building

In charge of the building

Type of budget

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Types of original users of buildings

Code of user Type of user

O Municipality

G City

REP Republic

POK Province

JKP Public Utility Company

JP Public Company

INST Other institutions

ORG Organizations

KOM Commerical buildings

PRIVAT Residential buildings

OST Other

Type of original user is defined by the budget from which

the building’s operational costs are financed

6

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Original building user

Original building user is defined by the budget line

funding the operational expenditures of the building

Type of user Name of original user

Municipality Kruševac

City of Belgrade City Secretariate for Education

City Secretariate for Culture

Republic Ministry nr. 1

Ministry nr. X

Republic Republic Directorate nr. X

Republic Republci Agency nr. X

Province Provonciapl Secretariate nr.1

Province Provonciapl Secretariate nr. X

Public utility company PUC Belgrade district heating

Public utility company PUC XYZ

Public company PC EPS

Public company PC XYZ

Other institutions Serbian Chanber of Commerce

Organizations Serbian Auto-Moto Association

Commercial buildings Insurance company ABC

Housing buildings Family home owned by Marko Marković

Other Something

7

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Users and sub-users under original

buildings user

The building user is the actual user of the building, such as

Primary School “Ivo Andrić”, Faculty of Technology, Primary

health care centre “Vračar” etc.

Sub-use is the user of a part of the building or user of one

of the buildings belonging to the user. Example: regional

units of original schools, local health clinics, sub-municipal

administrative offices, local facilities of public companies,

or facilities leased by the user.

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1. Faculty of Mechanical Engineering Belgrade

Type of original user: the Republic

Original user: the Ministry of Education and Science

User: the Faculty of Mechanical Engineering Belgrade

Republic / Ministry of Education and Science / Faculty of

Mechanical Engineering

2. Elementary School “Vuk Karadžić” in Stepojevac, unit in village

Vrbovno

Type of original user: City of Belgrade

Original user: City Secretariat of Education

User: Elementary School “Vuk Karadžić”

Sub-User: Regional unit in village Vrbovno

City of Belgrade / City Secretariat of Education / Primary School

“Vuk Karadžić / unit Vrbovno

Examples of hierarchy of users

8

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Types of data:

Static – slow changing:

Specific, non-technical and technical data defining the building

Result:

Inventory of public consumption buildings

Dynamic – fast changing:

Data on energy or energy sources consumption on monthly, weekly and daily

level and relevant data defining the intensity of operations in the building

Result:

Energy balance of the specific public consumption building and

Energy efficiency indicators of the specific public consumption building

Data collection, monitoring and analysis

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Example

Slow changing data:

Region, district, municipality;

Address of the building;

Buildings within building;

Building owner;

Building user;

Source of funding;

Owner and user persons in charge;

Contact person;

........... etc.

Non-technical data:

Data collection, monitoring and analysis

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Surface area of building;

Number of floors;

Electricity supply (number of electricity meter, type of buyer,

category of buyer, etc.);

Heating type (source of heating, energy source, etc.);

Total heated area, total heated volume;

Technical characteristics of the heating system;

Technical characteristics of the lighting system;

Operating processes in the building (food preparation, laundry

washing, swimming pool, etc.);

...... etc.

Technical data:

Example

Slow changing data:

Data collection, monitoring and analysis

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Real operating temperature in the building;

Working hours (number of shifts, etc.);

Annual interruption of operations (vacations, holidays, etc.);

Number of users of the building (permanent and temporary):

Number of pupils and teachers;

Number of employees;

Number of hospital beds, etc.

Intensity of operating process:

Number of meals cooked;

Quantity of laundry washed;

Number of examinations with specialized medical devices;

.... etc.

Data about operations in the building:

Example

Fast changing data:

Data collection, monitoring and analysis

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Invoices for electricity / gas / district heating / water (all tariff elements) in

kWh/kVArh/m3/KJ;

Reading of meters and counters;

Data on energy supply:

Type of energy sources;

Quality of energy sources (heat value);

Supplier;

Quantity in t/m3;

Date of delivery;

Stocks;

Etc.

Data on energy and water consumption:

Example

Fast changing data:

Data collection, monitoring and analysis

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Stand-alone building

ISEM – Definition of buildings

• Collect the bills for all energy sources and water for all

measuring pints for the building for the period January

– December 2014.

• Scan a copy of the bills for all energy sources and

water and send to mentor.

• In case there are more measuring points per any

energy source or water state the id. number of the

meter and describe the consumption it measures (for

which part of the stand-alone building).

• Determine if any payment is collected on flat rate or

pre-determined percentage basis.

• In case of flat rate collection define the relevant

surfaces.

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ISEM – Definition of buildings

Complex of buildings

• Determine the number of stand-alone buildings in the complex.

• Determine the total number of measuring points for all energy

sources and water.

• Determine the id. number of every meter and the consumption it

measures (for which buildings, or parts thereof).

• Determine if any payment is collected on flat rate or pre-

determined percentage basis.

• In case of flat rate collection define the relevant surfaces.

• The rest should be the same as for stand-alone buildings.

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ISEM – Definition of buildings

Part of stand-alone building

• Define the stand-alone building.

• Determine the number of measuring points for all

energy sources and water.

• Determine the id. number of every meter and the

consumption it measures (for which parts of the

building).

• Determine if any payment for any part is collected

on flat rate or pre-determined percentage basis.

• In case of flat rate collection define the relevant

surfaces.

• The rest should be the same as for stand-alone

buildings.

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Electricity

As of 1 January 2013, only final consumers of electricity whose

buildings are connected to the distribution system are entitled to

public supply. Buyers connected to the transmission network are

no longer entitled to be supplied at regulated prices.

As of 1 January 2014, only households and small buyers of

electricity are entitled to public supply. Apart from buyers

connected to the transmission network, also buyers connected to

the distribution system (except for households and small buyers)

are no longer entitled to be supplied at regulated prices.

As of 1 January 2015, apart form the right to public supply,

households are entitled to freely choose the supplier on the

market.

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Electricity

Small buyers of electricity are final buyers (legal persons and

entrepreneurs) if they have less than 50 employees, total annual

turnover up to Euro 10 million in RSD equivalent, and those whose

all buildings are connected to the electricity distribution system

of voltage up to 1kV.

Public supply is the sale of electricity to households and small

buyers at regulated prices.

Buyers who are not entitled to public supply shall buy electricity

from licensed suppliers in the free market.

Currently in Serbia there are 89 licensed electricity suppliers.

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Invoice for electricity

Elements

Fee for access to electricity distribution system

• Tariff elements:

o Buyers at low or medium voltage (approved power, excessive

power taken, active energy higher and lower daily tariff rate,

reactive energy and excessive reactive energy taken over).

o Consumer spending:

One-tariff metering (accounting demand and active

energy);

Two-tariff metering (accounting demand, active energy

higher and lower daily tariff rate).

Compensation for electricity consumption according to price determined

in (public) procurement of electricity.

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Electricity invoice – public supply

Buyers at low voltage – tariff elements include

1. Accounting demand

The monthly maximum active power is determined by metering and represents the maximum

average 15-minute value of active power during the period of calculation. Tariff elements for

maximum active power are accounting demand and excessive demand..

2. Active energy

The tariff element active energy is determined at the higher and lower daily tariff rate. The higher

rate is applicable for energy taken over between 07-23 h (08-24 h in summer), and the lower

between 23-07 h (00-08h in summer).

3. Reactive energy

The tariff element reactive energy is determined by tariff elements reactive energy and excessive

reactive energy. The tariff element reactive energy is applied if the power factor for the calculation

period is greater than or equal to 0.95 and it applies to the quantity of measured reactive energy.

Excessive reactive energy is the positive balance between the actually taken reactive energy and

reactive energy equivalent to power factor of 0.95. The tariff element reactive energy is not

determined on the basis of higher or lower daily level although it is often so stated in the invoices

for electricity.

4. Costs of public supplier

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Electricity invoice – public supply

Consumer spending– single tariff metering, group 2 – public and

common consumption or group 3 – other commercial consumption;

the tariff elements include:

1. Accounting demand

It is calculated for the calendar month according to the approved demand, or the peak

load determined for the buyer’s connection to the system, as defined in the electric-

energy permit and is expressed in kilowatt (kW).

2. Active energy

The tariff element active energy is determined based on three tariff elements:

1.Tariff element for rational consumption up to 350 kWh, the „green zone“,

2.Tariff element for moderate consumption from 350 kWh to 1600 kWh, the „blue

zone“, and

3.Tariff element for high consumption exceeding 1600 kWh, the „red zone“

For buyers from the category general consumption, group public and joint

consumption, only tariff elements 1 and 2 are applicable

3. Costs of public supplier

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Electricity invoice – public supply

General consumption – two-tariff metering, group 2 – public and

common consumption or group 3 – other commercial consumption;

the tariff elements include

1. Accounting demand

It is calculated for the calendar month according to the approved demand, or the peak

load determined for the buyer’s connection to the system, as defined in the electric-

energy permit and is expressed in kilowatt (kW).

2. Active energy

The tariff element active energy is determined on the basis of the three tariff

elements, both with lower and higher daily rates:

1.Tariff element for rational consumption up to 350 kWh, the „green zone“,

2.Tariff element for moderate consumption from 350 kWh to 1600 kWh, the „blue

zone“, and

3.Tariff element for high consumption exceeding 1600 kWh, the „red zone“

For buyers from the category general consumption, group public and common

consumption, only tariff elements 1 and 2 are applicable

3. Costs of public supplier

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As of February 2013 a fee for incentives for renewable

energy sources is applicable to all categories of buyers;

the amount of the fee until 13 January 2014 was RSD

0.044 /kWh, and as of 13 January 2014 it is RSD

0.081/kWh of consumed electricity

Electricity

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Prices for electricity – tariff buyers

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Gas supply

The tariff system has 3 categories of buyers

1. Buyers with connection to the natural gas distribution system at a point of

delivery with operating pressure lower than 6 bar (Category 1):

1.1 Households – natural persons

2.1 Other buyers – legal persons

2. Buyers with connection to the natural gas distribution system at a point of

delivery with operating pressure greater than 6 bar but lower than 16 bar

(Category 2):

2.1 District heating systems – including heat energy producers who use natural gas only for heat

generation

2.2 Balanced consumption – including buyers who in the period from 1 October of preceding

year to 1 April of the current year consume less than 70% of the total delivered amount of gas

delivered in the period from 1 October of preceding year to 1 October of the current year.

2.3 Unbalanced consumption – buyers who, in the period from 1 October of preceding year to 1

April of the current year consume at least 70% of the total delivered amount of gas delivered in

the period from 1 October of preceding year to 1 October of the current year.

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The tariff system has 3 categories of buyers

3. Buyers with connection to the natural gas transport system

(Category 3)

3.1 District heating systems – including heat energy producers who use natural gas

only for heat generation.

3.2 Balanced consumption – including buyers who in the period from 1 October of

preceding year to 1 April of the current year consume less than 70% of the total

delivered amount of gas delivered in the period from 1 October of preceding year to

1 October of the current year.

3.3 Unbalanced consumption – buyers who, in the period from 1 October of preceding

year to 1 April of the current year consume at least 70% of the total delivered amount

of gas delivered in the period from 1 October of preceding year to 1 October of the

current year.

Gas supply

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Tariff elements:

1. Capacity

The capacity of a tariff buyer is determined at each point of delivery as maximum daily

consumption at that point during the preceding year and is expressed as m3/day/year (m3 of

natural gas of heat power 33,33835 MJ/m3 at 288.15 K and pressure (1.01325 bar).

2. Energy source

The tariff element energy source per buyer is defined as quantity of gas determined by

measurement at the point of delivery in the calculation period. It is expressed in m3.

3. Delivery point

Tariff element delivery point shall be established as number of delivery points on which the

retailer sells natural gas.

The Decree amending the Decree on conditions for delivery of natural gas („Official Gazette of

RS“ Nr. 3/10 ) prescribes the calculation determining the delivered volume (quantity) of

natural gas relative to standard balance. The Energy Agency has prescribed the methodology

for calculating the volume of natural gas to standard conditions for measuring points without

the integrated corrector.

Gas supply

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Water supply Water supply is a public utility activity;

Serbia has about 150 water supply systems of different

sizes;

Local governments are in charge of water prices and

manner of collecting payment for supplied water;

Collection of payments is based on measured quantities

of supplied water;

Many local governments also provide sewerage services

for which payment is collected based on measured

quantities of supplied water.

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Water supply

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District heating

District heating is public utility and energy activity;

Local governments are in charge of prices and manner of collecting

payment for delivered heat energy. The Ministry of Mining and

Energy prescribes the maximum price for heat energy.

Colelction is done:

Flat rate, based on number of heated m2 or

Based on consumption measured by calorymeters;

According to the Law on Efficient Use of Energy, as of 1 January

2015, all district heating systems are obliged to move to collecting

payment for delivered heat energy based on measured consumption.

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Invoice entry http://isem.undp.org.rs/

Enter your user name and password

Received from your mentor

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Home page

Click on icons

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Your building

Click on Your building

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Invoice entry

Invoices are entered by repeating the same procedure for each energy

source, starting by clicking the Invoice entry button

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Invoice entry

When the window opens, if necessary,

Adjust year and month, and click on

the Next button

If you are not entering invoices in sequence,

click for reverse entry.

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Invoice entry

Enter reading

dates

After completing data entry click

on the Create button

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Invoice entry

Invoices are entered by repeating the same procedure for each energy

source, starting by clicking the Invoice entry button

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Invoice entry

When the window opens, if necessary,

Adjust year and month, and click on

the Next button

If you are not entering invoices in sequence,

click for reverse entry.

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Invoice entry

Confirm the selection of a group of invoices by

Clicking on the green line. If not adequate,

select the adequate group from the

drop-down menu

Once you finish, click Next

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Invoice entry

Enter reading

dates

After completing data entry click

on the Create button

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Invoice entry

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Invoice entry

When the window opens, if necessary,

Adjust year and month, and click on

the Next button

If you are not entering invoices in sequence,

click for reverse entry.

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Invoice entry

Enter reading

dates

After completing data entry click

on the Create button

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Invoice entry

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Invoice entry

When the window opens, if necessary,

Adjust year and month, and click on

the Next button

If you are not entering invoices in sequence,

click for reverse entry.

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Invoice entry

Enter date of reading

After completing data entry click on the Create button

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Thank you for your attention!

Maja Matejić, MSc.

Portfolio Manager - Energy

United Nations Development Programme

e-mail: [email protected]