Energy Saving Measures for “Tbilisi Infant House”
The project envisages the
introduction of solar thermal system for hot water supply
and implementation of energy saving measures such as
weatherization of attics, replacement of old wood windows &
doors with double glazed ones in PVC frames and replacement
of incandescent light bulbs with energy saving ones.
The introduction of solar
thermal system for residential buildings with total capacity
2800 litres and 400 litres
capacity for the kitchen will decrease the consumption and
dependence on grid electricity. In addition to improving
observation of sanitary norms for baby care (158 infants)
and their living conditions the implementation of the above
measures will result in reduction of electricity and gas
consumption by the Baby House, reduction of energy bills and
in significant CO2 emission reductions.
Works performed in the period
December 1, 2012 - March 1, 2013 included:
a) After development of detailed
work plan for the implementation of the sub-project and
obtaining necessary information the technical expertise of
the planned works including energy audit of the buildings
The aim of energy audit is to
analyze current energy consumption and estimate ENCON
(Energy Conservation) potential in the buildings. During the
energy audit both such measures as: roof insulation,
introduction of solar thermal hot water supply system,
replacement of convectional light bulbs with CFLs which are
currently under the implementation as well as measures like:
insulation of floors and walls have been estimated.
The current annual energy
consumption of the Baby House buildings for heating, hot
water supply and lighting and various appliances is-751376
kWh, including 447094 kWh for Building A and 304282 kWh for
Below the ordinary photos of the
one of the buildings and corresponding thermal photos
illustrating the heat losses (white, yellow and red colors
show heat escaping, red - greatest heat loss) from building
elements are shown.
According to the Energy Audit Report there is a considerable
ENCON (Energy Conservation) potential for the Infant House
b) Construction of solar water heaters
the period April-May “Mzis Sakhli” Ltd will construct
solar thermal heaters for the 3 buildings of the Infant
House, in particular:
Buiding-A - 3000 liter active solar combi system for
water and space heating which will be integrated with the
existing gas boiler and will contribute to the hot water
supply and space heating.
Building-B - 1270 liter passive solar water heating
system which will be integrated with the existing storage
tanks and gas boiler and will contribute to the hot water
supply. In case of the excessive energy generation it may
also contribute to the space heating.
Kitchen Building - 270 liter passive solar water heating
system for hot water supply of the kitchen.
Construction of roof insulation in Infant House building
roofing in Infant House buildings differs from each other,
building A has a slope roof while building B has a
reinforced flat roof, the technical solutions for the
arrangement of insulation of the roofs are different, in
Building A. Insulation of slope roof with will be
arranged with 10 cm thick mineral wool with the utilization
of the anti-condensation and diffusion membrane. Mineral
wool utilized will meet the requirements for thermal
conductivity 0,045 W/m0K as specified in the Energy Audit.
Building B. Insulation and waterproofing of the
reinforced flat roof will be constructed with the
utilization of 5 cm thick XPS (extruded polystyrol ) boards
and linocrom. Izocam foam boards with thickness 50 mm and
thermal conductivity 0,035 W/m0K as specified in the Energy
Replacement of old single glazed wooden windows and doors
with double glazed PVC windows & doors
considering several options for replacement of windows such
as type of glazing (double or triple) or low emitting glass,
their technical characteristics and prices the decision was
made in favor of low emission double glazed windows to
replace the existing old windows. The total area of replaced
windows and do ors in both buildings is 213,6 m2 and 66,4 m2
Replacement of incandescent light bulbs with CFLs and LED
envisaged by the project proposal in order to decrease
electricity consumption the incandescent light bulbs
installed in the both buildings of the Tbilisi Baby house
were replaced by energy saving light bulbs. In total 100
incandescent light bulbs were replaced by OSRAM 18W CFLs and
60 incandescent light bulbs were installed in the places
with many hours of usage during the day were replaced with
10.5 W LED light bulbs.
estimated during the energy audit such measure will result
in annual electricity consumption savings of almost 26530
in the period March1 - June 1, 2013
the works for the installation of solar thermal systems and
their testing were completed by the end of May, 2013.
the installation of thermal meter and controller, the
testing of the solar system started.
O & M
guidelines for installed solar thermal system for local
staff have been prepared and delivered to the local
technical staff upon testing of the equipment.
results of the achieved energy savings
The checklist for registration and
calculation of ongoing outflow of electricity in order to
compare electricity and natural gas consumption after
implementation of the energy efficiency measures and
installation of solar thermal systems was prepared. The
metering data will be collected on a monthly basis.
mid-March works on the replacement of bulbs, insulation of
roofs and replacement of old windows and doors were
completed and beginning from end of March the monitoring of
the electricity and natural gas consumption was started.
Below in the table the gathered data for electricity and
natural gas consumption and comparative analysis regarding
the same period of the previous year is given.
Natural Gas M3
Natural Gas M3
Natural Gas M3
Natural Gas M3
electricity savings for the period - 15,219.6 kWh which is
natural gas saving for period - 14,572.7m3 which is about
bill savings for the period - 13,364.9 GEL.
Emissions reduced - 33778.9 kg CO2 in the period.
Visual Information on implemented energy efficiency
Special information stand was prepared and installed at
the entrance of the Tbilisi Baby House. The stand
contains information about project donor and
implementing organization as well as brief description
of implemented energy efficient measures and achievable
savings in energy consumption and environmental
benefits. Posters describing implemented energy
efficiency measures were developed, printed and fixed on
the hall walls.
All the works including arranging of roof insulation,
replacement of windows and doors, replacement of
incandescent light bulbs are videotaped and photos were
taken. This material was edited and short video
describing all the works prepared.
Project launch event
project launch event and presentation of the implemented
energy efficiency measures was organized on June 5, 2013 as
a part of events to celebrate the World Environment Day. The
event was attended by the representatives of BP in Georgia,
Minister of Environment and Natural Resources Protection,
Minister of Labor, Health, and Social Affairs, Minister of
Energy, officials from state social care organizations,
representatives of environmental organizations, Tbilisi Baby
House personnel, EEC Georgia team& media.
audience was welcomed by the Tbilisi Baby House Director Mr.
David Papiashvili who congratulated the audience with the
World Environment day, talked about the benefits the project
brought to the Baby House in terms of saved energy and
improved comfort for the infants and the personnel, thanked
the project donor and the implementing organization.
Georgia Director, G. Abulashvili spoke of the project as the
example where the energy, environmental and social issues
are linked together resulting in energy and bill savings,
reduction emissions to the atmosphere and improvement of
living conditions for the Baby House inhabitants. Then Mr.
Abulashvili told about the technical details of the project,
describing each energy efficient measure introduced and
Georgia representative, Mr. Gia Gvaladze, External Affairs
Manager greeted the audience and told that BP for years is
implementing projects in social sphere and energy efficiency
is one of the priority areas. He thanked EEC Georgia for a 5
year fruitful cooperation in implementation of energy
efficiency projects and pointed out that successful
implementation of this project will be a good example to
follow by other private companies operating in Georgia.
Minister of Environment and Natural Resources, Mrs.
K.Gogaladze spoke about the role of energy efficiency in
decrease of energy consumption, improvement of environmental
situation and energy security of the country. She also
pointed out that this project and achieved results will give
an impetus to other companies to implement similar projects.
Minister of Energy, Mr. K.Kaladze spoke of the importance of
implementation of the energy efficient projects on a wider
scale, told about the ministry’s efforts on drafting energy
efficiency law. He also spoke about the importance of public
awareness campaigns on various energy efficient measures
like: energy saving lighting systems & home appliances and
other clean energy applications.
Minister of Labor, Health, and Social Affairs, Mr. Sergienko
spoke of the importance of the project, its energy,
environmental and social benefits. He stressed out also
economic results of the project for the Baby House as
possibility for the institution to use money saved on energy
for other necessary needs.
invited guests toured the Baby House buildings and yard in
groups to see the installed equipment.
launch event was covered in the news by the invited media-
Rustavi-2 and TV-9.
August 20, 2013