Building Energy Efficiency Project HOA's in Tbilisi City. George Abulashvili ESIB Local Coordinator in Georgia Energy Efficiency Center Georgia

Transcription

1 Building Energy Efficiency Project HOA's in Tbilisi City George Abulashvili ESIB Local Coordinator in Georgia Energy Efficiency Center Georgia

2 Background and Overview of Demonstration Project in Tbilisi In March 2013 the Tbilisi City Hall and Tbilisi City Council based on the initiative of private company Ltd Energy Innovative Group announced the launch of the project Energy Efficiency Development with Involvement of Community Based Organizations aiming improvement of services provided to members of Home Owners Association (HOA) and realisation of goals SEAP developed under EU Covenant of Mayors initiative. The scope has been aiming others to reactive the collective (district) heating system in Georgian cities in order to improve life conditions of the population via replacement low effective individual heating-hot water preparation systems, introduction of solar thermal applications and thermal insulation to the building envelope.

3 Partners & Beneficiaries of Demonstration Project Tbilisi City Council s decision to carry out a pilot project aiming at reduction of heat consumption and resulting reduction of greenhouse gas emissions into environment due to implementation of energy efficient measures at the residential building. ESIB Project s decision to provide technical assistance to Tbilisi municipality by carrying out energy audit, representing a tool of a system approach helping to identify a set of energy efficient measures, and to organize a subsequent training on energy efficiency. Home Owner Association (HOA) and Inhabitants of multi-apartment 9-storied residential building.

4 Key Problems Addressed by Project - Improved local energy security; - High energy bills; - Non-efficient consumption of Imported energy products (Natural Gas); - Esthetic Side of Building Facade; Key Causes of a Problems - Lack of Awareness of Population Related to Energy Efficiency Issues; - Lack of Financial Sources; - Lack of Knowledge and Low Capacities of HOAs; - Property Rights/Ownership & Management Problems; - Lack of Incentives to Consume Energy Rationally; - Lack of Demonstration Projects Showing a Benefits of Energy Efficient Measures in Buildings;

5 PROJECT APPROACH Selection Criteria - High Motivation of the HOA s Members; - Medium Gas Pipeline Pressure; Multi-Apartment Residential Building in Nadzaladevi/Temqa Sub-district Multi-apartment 9-storied one-section residential building built in 1978 consists of two identical units A and B connected to each other by a staircase. By decision of Tbilisi municipality was selected a residential building with identical units where is planning to implement heat insulation in one of the units with the objective of comparing actual results of heat consumption between the heat insulated unit and the unit without heat insulation. It was planned to monitor heat consumption and compare the data with the energy audit data. It is expected that upon receiving monitoring results and assessing actual energy saving, the same measures on heat insulation of unit B envelope will be carried out. Later on, this technical solution will be replicated at one-section residential buildings of Tbilisi, which were constructed based on the analogous design project.

6 BRIEF DESCRIPTION OF BUILDING Characteristics of the Residential Building Unit A Unit B Wall surface, m 2 1, ,024.7 Surface of single-glazed wooden windows, m 2 Surface of double-glazed wooden windows, m Surface of metal plastic windows, m Total surface of windows, m Energy Supply System of Building Heating system There is no building heating system at the residential building. Pipelines of building heating systems have been partially dismounted by inhabitants because of the absence of district heating. Each apartment has an individual heating and uses the following equipment: for heating purposes local gas heaters of KARMA and Ariston types or electric oil heaters are applied. Roof surface, m Floor surface, m Floor-to-floor height, m Number of floors 9 8 Heated area, m 2 1,674 1,491 Heated volume, m 3 5,022 4,473 Hot Water Supply System There is no centralized system of hot water supply. Hot water supply for each apartment is individual and depends on capacities of inhabitants. It is mainly done with tinstantaneoushe help of the following equipment: gas water heaters or electric accumulative heaters ARISTON or THERMEX or instantaneous water heaters of ATMOR type.

7 PROPOSED RE & EE MEASURES List of energy saving activities for Block A Proposed Energy Saving Activities 1 Heat insulation of walls 2 Heat insulation of roof (floor of attic) 3 Heat insulation of floor (ceiling of basement) 4 Installation of new metal plastic double glazed windows 5 Implementation of district heating and solar HWS system List of energy saving activities for Block B Proposed Energy Saving Activities 1 Installation of metal plastic double glazed windows 2 Implementation of district heating and solar HWS system

8 Annual Energy Consumption Chart for Block - A Year: 2012 (for unit A) Electricity Natural Gas Total Actual energy consumption [kwh per year] Energy payment, Specific energy consumption [kwh/m 2 per year] Annual Energy Consumption Chart for Block - B Year: 2012 (B) for unit Electricity Natural Gas Total Actual energy consumption [kwh per year] 24, Energy payment, Specific energy consumption [kwh/m 2 per year]

9 Energy Consumption for Heating and Hot Water After Heat Insulations of Walls Jan 2014 Block A Block B Saving Natural gas consumption [m 3 ] Natural gas consumption [kwh] Energy payment,

10 RESULTS Presented results is based on Energy Audit conducted with support of ESIB Project. The Project will be launched from November, For each family is envisaged the meters for energy consumption (Electricity, NG & HWS) counting after implementation of relevant EE & RE measures. Energy saving potential(unit A) Energy saving potential : Energy saving 244,791 kwh/year Net saving 20,143 [ Year] Investments into energy saving* 174,729 [ ] Payback period 8.7 Years Energy saving potential (unit B) Energy saving potential : Energy saving 143,829 kwh/year Net saving 16,967 [ Year] Investments into energy saving* 143,199 [ ] Payback period 8.4 Years

11 RESULTS Environmental Benefits Altogether, the total reduction of carbon dioxide emissions for both units of the residential building will be = ton/year.

12 THANK YOU ENERGY EFFICIENCY CENTRE GEORGIA 19, D.Gamrekeli Str.VI Floor, Off. 611, Tbilisi 0160, GEORGIA Tel.: Fax: