1. February, 2012

2. Lanzhou Rail Transit Construction
Construction Project of supporting pipe network of
heat supply of Cogeneration--- “Construct big new
plants by shutting down small old ones”, Lanzhou
Thermoelectric Limited Liability Company, State
Power.
Po er
Lanzhou Renovation Project of Energy Saving for
Energy-Saving
Existing Buildings
Renewable Energies and Constructions Integration
Projects in Lanzhou
j

3. Lanzhou Rail Transit Construction

5. Urban Overview of Lanzhou

6. Urban Overview of Lanzhou

7. Current Situation and Future Planning of Lanzhou
Transport
The basic form of Lanzhou urban road network is “district division
road network + linking passageways ” and th areas k
d t k li ki d the keep th grid
the id
pattern. The traffic flow shows the situation of “crowed at the director of
east-west ” and “blocked at the director of south-north”. The narrowest
section f
ti forms the “bottleneck” of Lanzhou transport.
th “b ttl k” f L h t t
The Narrowest
Section

8. Lanzhou Social and Economic Status
Lanzhou Social and Economic Index Diagram

10. Line N t
Li Network Planning of Lanzhou Rail Transit
k Pl i fL h R il T it

11. Line Network Planning of Lanzhou Rail Transit
Central Urban Area line Network is composed of Line No. 1, Line
No. 2 and Line No. 3 with the totle length of about 90km. There are 67
stops in the network. In the planning, Line No. 2 and Line No. 3 form
the framework of the network and run through the central urban area
from the east to the west. Line No. 3 is the auxiliary line and connects
the two banks of the Yellow River in Lanzhou.

12. Short-
Short-Term Construction Planning of Lanzhou Rail Transit

13. Lanzhou Medium-Term Construction Planning
Medium- 2021—
2021—2030

14. Long-
Long-Term Construction Planning of Lanzhou Rail Transit

16. Line Direction Line Direction Plane
16

17. Station Distribution
The short--term plan is to build the part from Chen guanying to
Donggang with the total length of about 26.53km, which is underground.
gg g g , g
There are 20 stops and 1356m between each stops averagely. The
longest distance between stops is 2320m and the shortest is 822m. It
plannes to build one depot and one parking lot.
17

18. Overview of Stations
5 transfer stations 1 station at the 3rd floor underground 14 stations at the 2nd floor underground

19. Overview of Stations

20. Range
Range Structure Underground and Construction Methods
Range Tunnels Underground(Not include
Access line): 21km Dual System , totlly 20
ranges
In 21km, shield method section is 15.5km
which takes 75% of the total length. Mining
method section is 2.5km which takes 12% of
the total. Open-Cut method section is 3.1km
which takes 13% of the total.

21. Power-
Power-Supply System

22. Project Planning

23. The short-term emgineering starts the experimental section in July 2011. The Full range of civil
engineering starts in October. Th fi t t t run i i O t b 2016 The t i l operation i at th
i i t t i O t b The first test is in October 2016. Th trial ti is t the
end of December 2016. The total duration is 63 months.
July 2011 the Beginning of 2014: Basically complete the civil work
July 2013 December 2015: Complete station renovation and mechnical and electronical
installation
January August 2014: Complete rail track-laying work
October 2015: Mmain substations supply electricity. The end of January 2016, sration
substation supply electricity.
the beginning of March 2016: begin to jointly adjust the system
the beginnign of October 2016: the test run. The end of December: the test operation.

24. Investment Estimation

25. Financing
27.6% of the total funds will be from the
g
government. The other 72.4% will be loaned fron
%
domestic commercial bank. Next, we will try for
the policy bank funds and reduce the funds cost.
policy-bank cost
27.6% from Government
72.4% from loan

26. Financial Evaluation
The construction period is 5 years. The operation period is 25 years. The
economic evaluation caculation period is 30 years. The financial internal
rate of return of the Project before tax is 0.63% and 0.54% after tax. The
payback period (including construction period) before tax is 29.6years
and 29.7 years after tax The loan would not be paid off during the
29 7 tax.
caculation period.
As the urban infrustructure, the project is public welfare. From the aspect
of the financial status of the project itself, the profitability and solvency
are weak. It needs to raise the proportion of the capital and try for the
government subsidies in the preliminary period of the operation.

27. National Economic Evaluation and Social Evaluation

28. Construction P j t of supporting
C t ti Project f ti
pipe network of heat supply of
Cogeneration--- “Construct big new
plants by shutting down small old
ones”, Lanzhou Thermoelectric
Limited Liability Company, State
Company
Power.

29. Areal map of heat supply
Scope of heat supply: area to the south of Yellow River, east of Pingliang road, Chengguan district, Lanzhou.
Heat supply area: 16.78 million m!, Current area: 6.3 million m!, Planning construction area: 10.48 million m!.
Heat capacity: 800MW, Annual heating load: 6032532.80GJ, Construction term of supporting pipe network: 2012-2015.

30. Plan of distribution of heat source to the south of Yellow River, Chengguan district, Lanzhou.
Coal-fired: 58 sets, 120 units, total 998 tons. Gas: 78 sets, 140 units, total 500.66 tons.

31. Current problems
• Scope of heat supply of the project is the area to the south of
Yellow River, east of Pingliang road, Chengguan district,
Lanzhou. The current problems of heat supply in this area are as
follows:
• A large number of constructions in the area require heating
supplies as it is one of the commercial and administrative center
of Lanzhou. Coal fired area jointed and scattered boiler rooms
Lanzhou Coal-fired area,
supply a quite proportion of heat. But due to some of the boiler
rooms which are equipped by small sized boilers that have low
capacity and low efficiency of dust collection the average thermal
collection,
efficiency of the boilers is low. And quite a number of boiler
rooms only have old equipments and limited space, coal and ash
are all leaved in open space near the rooms. In addition, the
p p ,
chimneys of the boiler rooms are mainly made by iron sheet and
steel and their height are all lower, together with the laggard
smoke prevention and dust control devices, severe air pollution is
caused in this area.

32. Status of the air pollution in the city
• Lanzhou is temperate zone with semiarid continental monsoon climate, but the
basin terrain of the city proper makes it hard for the air and atmospheric impurity
to spread which leads to a special basin climate.
spread, climate
• Although certain progress has been made in air pollution abatement in recent
years in Lanzhou, based on its special geographic environment and worse
pollution in the past, the degree of the air pollution is still serious.
• In Lanzhou the concentration of the three main pollutants(S02 N02 PMIO) in
Lanzhou,
heating period are higher than it is in non-heating period. Normally, the average
value of the concentration of S02 in heating period is twice more than it is in non-
heating period, exceeding by 41% and 0.5% respectively in period of heating and
non-heating. The average value of the concentration of N02 in heating period is
1.5 times than it is in non-heating period. It exceeds standards mainly in heating
period and takes about 80% of the whole year’s exceeding number. The average
value of the concentration of PMIO in heating period is 1.76 times than it is in non-
non
heating period, exceeding by 80% in heating period, which is 2.06 times than it is
in non-heating period. The pollutants of PMIO in heating period still take the
dominant position of the whole year. PMIO the primary pollutant, no matter in
heating or non heating period always takes the large part and comes before S02
non-heating period,
and N02. During the heating period in Lanzhou, the pollution level of the three
main pollutants, namely S02 N02 and PMIO is almost doubled than it is in non-
heating period, presenting a typical coal-smoke air pollution. Meanwhile, the dust
emission of coal-fired boilers in the winter of Lanzhou is one of the main reasons
f f f f
that lead to the air pollution.

33. Necessity of the project construction
• The project will not only manage the air pollution of Lanzhou but also
improve th urban i f t t
i the b infrastructure, which can create more social,
hi h t i l
environmental protect and economic benefits. Meanwhile, it is a
cogeneration project and accords with the national policy, so it is a key
p j
project supported by the g
pp y government to solve the p problems of city heat
y
supply and environmental contamination.
• On the one hand, the project changes the situation that the area where to the
south of Yellow River, east of Pingliang road, Chengguan district, Lanzhou is
mainly d
i l depend on coal-fired b il
d l fi d boilers to supply h
l heat. O the other h d i can
On h h hand, it
supply heat to the newly built constructions which have no heat producer.
After the completion of the project, it can meet the needs of central heating
for the constructions of 16.78 million m!. At the same time, it can demolish
16 78 m time
and stop building small coal-fired boilers and solve the problems above-
mentioned. After the implementation of the project, it can save standard fire
coal of 285 thousand tons.
• In conclusion, it is very essential to build this Project to solve the problems of
the city heat supply in winter and the severe air pollution. By implementing
the project, it can furthest lower the environmental pollution caused by firing
coal,
coal improve the air quality make good social environmental and economic
quality, social,
benefits so as to create a better investment climate and living conditions.

34. Comprehensive heat index
• Total heat addition area: 1678 104 m!, current
construction heat addition area: 630 104 m!,
current heat addition area index: 50 w/m!.
Planned heat addition area: 1048 104 m!,
planned heat addition area index: 40 w/m!.
• Thus, it can be figured out that the
comprehensive heat index of the Project is 43.75
w/m!.

35. Heating load
• Max heating load: 743.2 MW
• Average heating load: 519.08 MW
g g
• Min heating load: 328.92 MW
• Annual heat consumption: 6032532 80 GJ
6032532.80

36. Level 1 level 2
water service water service
130
130 90
90
thermal Heating power station user
power
plant
level 1 level
water return 2 water return
t t
70
70 65
65

37. Pipe network of heat supply
Setting an valve chest at the exit of the thermal power plant, the chest must meet the needs
of turn-off and measure.
The main pipe goes northward along the 343# to the branch of Donggang east road after
pp g g gg g
laying out of the plant.
One of the branch line is laid through 342-1#, 403#, 606-3#, Yantan road and Yanxi road to 1#
plant. The other line is divided by two hypo-branch lines when it goes along Donggang east
road to 345# (one is laid through 359 5# 350# and 367# to 48# plant; the other is laid
359-5#,
through 608-1# and 605# to 5’ plant).
Level one pipe network laid by 46.517 Km, most adverse loop: 7.94 Km, max pipe diameter:
D1220x10, min pipe diameter: D219x6.

38. Thermal power plant
• 92 plants will be set in the scope of the heat addition.
• Determine of the scale of the plant.
• Th
There are 6 kinds of scale planned f th h t
ki d f l l d for the heat
addition area: 100 thousand m!, 120 thousand m!,
150 th
thousand m!, 180 th
d ! thousand m!, 200 th
d ! thousand
d
m!, 250 thousand m!.

39. Total investment of the project
p j
• Total investment of the project: 423.1476 million yuan
which i l d construction cost 337 003 million yuan,
hi h includes t ti t 337.003 illi
other expenses of project construction 40.2888 million
yuan, reserve f d 30.1833 million yuan, interest
funds 30 1833 illi i t t
incurred during construction 8.5802 million yuan and
initial
i iti l working capital 7 0923 million yuan.
ki it l 7.0923 illi
• Capital source: application of state subsidy,
government support, foreign loan and self-funding by
project entity etc.

40. Project status
• The project has been set up and got comments
on and approve of feasibility study report
report.
Preliminary design is under way at present, hard
work will be done so that the project can be
started in 2012.

41. Conclusion and suggestion
gg
• Conclusion
• By investment estimate and economic analysis the project
analysis,
has both economic benefits, social and environmental
benefits. It is feasible in both aspects of finance and
p
national economy. Suggest that the project be prepared
actively and implemented as early as possible so as to
perform its functions.
functions
• suggestion
• The implementation of the p j
p project will p y a very active
play y
role in improving the environmental condition of the area to
the south of Yellow River and east of Pingliang road,
Chengguan district Lanzhou To enable the project be
district, Lanzhou.
constructed as soon as possible so as to bring benefits to
the people of Lanzhou city, the government should give
strong support to the project.
project

42. Lanzhou Renovation Items of Energy-
saving for Existing Buildings

43. . Base Situation of Stocking Buildings of Lanzhou
g g
According to the energy-saving building policy set by the Ministry of
Construction of China and Department of Construction of Gansu province,
Lanzhou is gradually carrying out the energy conservation standard of saving
50% and 65% on the new buildings since 2000. Meanwhile, in order to resolve
the problems of existing building s high energy consumption and inferior
building’s
reside comfort level, energy-saving renovation will be implemented on non-
energy-saving buildings built before 2007, so as to lower the overall urban
building energy consumption. Accroding to statistics, there are about
30,000,000 sq.m stocking buildings need and with valuable energy-saving
renovation, more than 95% of these buildings are brick-concrete structure,
poor in thermal and insulating performance, lag in technical equipment, and
with serious energy waste in winter s heating and summer’s cooling with air
winter’s summer s
conditioners. These building’s heating basically gives priority to coal-fired, the
consumption of every heating season reached 30kg standard coal per square
meter, and a large amount of Carbon dioxide and other greenhouse gases were
discharged while burning a mass of coal seriously threat the life quality and
living environment of the human. So, the energy-saving renovation of existing
building has been listed in the government work objective as an extremely
urgent task
task.

45. Exterior wall heat preservation system
Basal wall
. Situation of Existing Building’s Waterproof interface agent
Energy-saving Renovation
nergy- Insulation layer
Adhesives
Alkaline-resistant fiberglass roving cloth
1 Renovation Content
Waterproof anti-crack plastering mortar
A. Energy-saving renovation of building
Energy- Waterproof anti-mildew putty
exterior protected construction
construction. Dope finishing coat
Including the renovation of exterior
wall, doors and windows,roofing and
floor(including
fl (i l di overhead floor and
h d fl d
basement floor).

46. B. Indoor heating system measurement and temperature regulation
renovation.Including heatmeter installation, temperature-sensing valve, to
g temperature-
p g
achieve building (household)-separating measure and room-separating
(household)- room-
temperature control.
C Heat source and heat pipe network thermal equilibrium transformation.
pp q
Mainly refers to the heat source combustion system, circulatory
system and intelligent control transformation of transportation system,
y g p y
to achieve the outdoor temperature compensation, and frequency-
frequency-
controlled oxy-acetylene linkage and hydraulic automatic balancing
oxy-
operation, improve the heating efficiency.

47. Household Calorimeter Method
The Main Individual
Household
Thermometric Radiator Heat Allocator Method
Methods
Flow Temperature Method

48. 2 Renovation Method
A. Heat Metering System
Household heat metering transformation. Taken measures to install heat balance
H h ld h t t i t f ti T k t i t ll h t b l
valve, temperature control valve and heat metering devices on the district heating
network and unit return water system, unit (building) heat measurement, users carry
out heat distribution method transformation.
Heating system transformation. Install frequency conversion device and carry out
for heat source , carry out automated regulation on the heat source equipment and
y g q p
circulatory system. Install temperature control valve in the main and branch heating
pipe network, and the users unit backwater system, so that the entire heating zone
temperature tends to equilibrium Use the inorganic heat transfer technology to recycle
equilibrium.
waste heat discharged from the boiler, to increase the furnace temperature.
Creating GPRS heat supply network and user remote monitoring system. Through
the unit controller (
(with transmission module) and the Mobile G S network, to
) GPRS
achieve heat exchange station (boiler room), and remote control of heat metering,
telemetry functions of user thermometric management system. Collecting stored
thermal parameters in real time, to establish a database, provide accurate, scientific
and effective data for the heating sector, improve operating management efficiency.

49. B. Building Exterior Protected Construction.
Precedence order of building exterior protected renovation : external doors and
windows, roofing, unit doors, closed balcony, stairway partition walls, outer walls, the
ground. the transformation will give priority to the doors and windows, balconies and
other weak parts.
parts
3 Present Working Situation of The Existing
building Energy-saving
b ildi E i
At the"Eleventh Five-Year" period, we have completed 1.3 million square
meters of existing building energy-saving (including energy-saving heating
energy saving energy saving
system with 1.24 million square meters, an integrated energy-saving
transformation with 60 thousand square meters). And also, 572,800 square
meters transformation tasks has been completed in 2011. Through the
inspection and acceptance t completed transformation projects, the heating
i ti d t to l t dt f ti j t th h ti
energy consumption of the implemented projects reduced significantly, and
indoor thermal comfort markedly improved.

50. . The “twelfth five-year” Plan of Existing Building Energy
Saving
1 According to the overall heat metering and energy-saving
arrangement of Chinese Ministry of Construction s “twelfth five-
twelfth
year” plan , the basic requirements to be completed by 2020, with the
heating measure and energy-saving transformation of the valuable
g gy g
local old residence. We plan to complete the energy saving
transformation of existing residential buildings for 5 million square
meters in the “twelfth five-year” plan, the estimated total investment is
1.34 billion yuan.

51. 2 Fund R i i
F d Raising
Currently according to the actual situation in our city, the main
means of th f d raising are: 1 The district (
f the fund i i 1. Th di t i t (county) government
t ) t
finance established special funds for renovation of existing buildings
energy,
energy which has been listed in the annual budget of finance. 2. The
finance 2
active application on the national and provincial awards funds. 3. Self-
financing of units and residents, residents can extract a certain
g
amount of housing fund to invest in energy-saving transformation. 4.
Through the implementation of contract energy management
approach to attract the investment from social capital.

52. 3 Existing Problems
Energy-saving transformation of the existing buildings is a costly and
long-period
long period systems engineering due to a short time of impelmentation, there
engineering, impelmentation
are still some aspects need to improve, such as working mechanisms, policy
system and so on. According to the current situation, compared to the state
and local financial incentives subsidies and the cost of renovation, there still
exists a large funding gap, to a large extent restricted the transformation
carried out smoothly To further increase the fight for support efforts from
smoothly.
national funding to the western region, and to ensure local financial subsidies
in place timely and sufficiently while the transformation funds will be raised
through multiple channels, and actively introduce social capital at home and
abroad to invest in the transformation projects, to establish an effective
mechanism for promoting the work, and further accelerate the pace of the
work
energy-saving work in Lanzhou City.

53. Renewable Energies and Constructions
Integration Projects in Lanzhou City

54. general situation of the project
Renewable energies, ki d of natural resources with th ability of unceassingly
R bl i kind f t l ith the bilit f i l
regenerated and being replenished with the passage of time has essentially an
endless supply, because they are not destroyed during their own transformation
and human use. Renewable energies mainly refer to solar energy, water energy,
wind energy, bi
i d biomass energy, geothermal pressure and ocean energy etc., which
th l d t hi h
are practically infinite and cannot be depleted. Having little or no negative impact
on the environment, renewable energies are also called green energy. Vigorously
developing renewable energies is of great importance to the development of
economic and social development of China and the whole world.
Lanzhou is ocates in the geographically centre of China's land territory it lies
between the parallels 35 34' and 37 07' 07 N and the meridians 102 35'
and 104 34' E The city located in a temperate continental climate zone with the
34 E. zone,
mean annual temperature 9.3 C, the annual average rainfall 360 millimeters,
the average annual sunshine hours 2480.1 hours and average frost-free period
180 days. Based on the analysis and evaluation, Lanzhou has rich renewable
energies,
energies especially solar energy water energy and shallow geothermal energy
energy, energy.
Thus the city enjoys a favorable condition of development and use of the
renewable energies. The future for development and utilization is therefore bright.

55. GEOGRAPHIC POSITION OF LANZHOU IN
GANSU PROVINCE

56. Solar energy resource and application of
solar building integration project
l b ildi i t ti j t
• 1 Solar Energy Resources in Lanzhou
gy
• Owing to its special geographical location and climate solar energy is
abundant in Lanzhou. With preliminary evaluation done by professional
organization, annual mean radiative energy of Lanzhou is 5104.903MJ/
g , gy
(m2·a) and the mean annual sunshine duration is 2480.1 hours, 6.8
hours a day on average. From May to July, sunshine hours reaches
maximum and from November to January, it reaches minimum. Based on
y
the calculation according to Meteorological Industry Standard of PRC
QX/T89-2008, Lanzhou is the area rich in solar energy, only next in
number to Tibet.
• 2 General Information of Solar Energy and Constructions Integration
Projects in Lanzhou
• <1>Main Ways of Applying Solar Energy in Constructions
1 Main
• Currently, there are two main aspects in application of solar energy and
constructions integration projects in Lanzhou, one is Solar Heater
System; the other is Photovoltaic system, which includes off-grid
system off grid
photovoltaic storage battery system and grid-connected system

57. Under the supervision of United Nations Industrial Development
Organization, grid connected
Organization grid-connected multicrystalline silicon solar panels and
a collective solar hot water system have been built in Lanzhou

58. • <2> Application Status of Solar Energy and Constructions Integration
Projects in Lanzhou
• Among all the solar energy and constructions integration projects in
Lanzhou, 95% of them are solar heater system and constructions
integration projects, where solar heater system and public buildings
integration projects are in the majority. This fully testifies to the
applicating efficiency of solar heater system and public buildings
integration project. Ph t
i t ti j t Photovoltaic system is still on the primary stage.
lt i t i till th i t
With the gradual maturation of power price and grid-connected
techniques, these projects would enter a faster development period.
• Up to now more than 10 solar heater system and constructions
integration projects, which is nearly 400,000 square meters have
been set up in Lanzhou. Application areas of solar energy water
heaters used by general people have reached 1,000,000 square
yg
meters. The projects were widely acknowledged by both rural and
urban residents. Meanwhile, as the capital city of Gansu Province, a
number of solar system development and research institutes were
settled here like a new established “UNIDO International Solar
here, UNIDO
Energy Centre ”, Gansu Natural resources Research Institute, Solar
Energy and Environmental engineering & Technology institute in
Lanzhou Jiaotong University, Gansu Jinchuan Solar Energy Co., Ltd,
Gansu Tuohe New Energy Co., Ltd etc. The city initially has strong
G C
research & development capabilities of Solar Energy Industry

59. The Proportions of People Using Solar Heating Systems in
Some Residential Quarters in Lanzhou

60. • <3>Development Planning of Solar Energy and Constructions
Integration Projects in Lanzhou During the12th Five -Year Plan,
Year Plan
• In order to push forward the application of the renewable energy
in constructions, Lanzhou Urban and Rural Construction Bureau
devised A Specific Plan for the Application of The Renewable
p pp
Energy in Construction During the 12th Five -Year Plan. The
plan proposes to achieve the goal of increasing 10 180 000
square meters of solar heater system and constructions
integration projects of these areas 280 000 square meters
projects, areas, 280,000
would be modified solar heating system in current buildings and
9,900,000 square meters would be newly-built solar heater
system and constructions integration p j
y g projects. Effective area of
solar collectors would increase 184,700 square meters in
Lanzhou from 2011 to 2015. When completed, it will be possible
to save at least 40,500 tons of coal every year in Lanzhou. The
estimated investment cost of the projects is about 337 000 000
337,000,000
yuan.

61. Shallow Geothermal Energy and implementation
projects in Lanzhou
• 1 Shallow Geothermal Energy
• Shallow geothermal energy is the low- temperature heat energy (<25 ),
reserved in the soil, sandstone and underground water of the thermostat
, g
layer under the ground surface layer within the depth of 200m. Shallow
geothermal energy, featuring in wide distribution and rich utilization value,
is known as the clean & renewable pollution-free resources. Thus the
future for development and utilization is bright.
• Shallow geothermal energy is widely distributed and richly reserved in
Lanzhou. With evaluation done by professional organization, the quantity
yp g , q y
of shallow geothermal energy in Lanzhou equals 142.84 108t of coal.
The quantity of natural resources and sewage-source equals 26.64 108
tons of coal. The proved ground source capacity reaches to 0.19 108 t,
groundwater source 2.16 108 t, surface Water Source 23.73 108 t and
sewage-source 0.56 108 t. If exploiting half of the overall quantity of
shallow geothermal energy, the winter in-house heating and summer
cooling requirements of the whole city would be meet.
li i t f th h l it ld b t

62. HYDROGEOLOGIC MAP OF URBAN CENTRE DISTRICTS
OF LANZHOU CITY

63. • 2 Application Status of Shallow Geothermal Energy in
Lanzhou city
• Utilization of shallow geothermal energy was developed
gradually in the last decade in Lanzhou, with the patterns of
usage are to provide heating systems and refrigeration systems
in buildings with ground source heat pump system Up to now
system.
about 20 ground source heat pump systems, which is nearly
500,000 square meters have been set up in Lanzhou. A Survey
was conducted to determine whether these projects were
p j
running smoothly. The result indicates that except some
projects failed to work normally, due to the defects or errors in
the aspects of design, construction and management, the
projects in general were encouraging and the designing targets
were basically met. The projects reaped significant economic
benefits, but also resulted in good social and ecological
benefits. Th are approved b b th i
b fit They d by both investor and th users.
t d the
With the support of the government and continuous growth in
the quality, these projects would enter a faster development
period.
period

64. • 3 Development Planning of Shallow Geothermal Energy
Utilization in Lanzhou During the 12th Five -Year Plan
• Based on A Specific Plan For The Application of The
Renewable Energy in Construction during The 12th Five -Year
Plan,
Plan the goal of increasing 4 550 000 square meters of
Shallow Geothermal Energy and constructions integration
projects should be achieved, of these areas, 480,000 square
meters would be ground source heat pump system 2 520 000
system, 2,520,000
square meters would be groundwater source heat pump and
1,550,000 square meters would be the sewage-source heat
p p y
pump system. When completed, it will be p
p , possible to save at
least 62,100 tons of coal every year in Lanzhou. The
estimated investment cost of the projects is about
986,000,000 yuan. From the currently usage situation and its
future development trend, with the technology becoming
f t d l t t d ith th t h l b i
mature gradually, Shallow Geothermal Energy and
construction integration projects may be the most potential
renewable energy. Its social and ecological benefits would
energy
also be significant. With the support of the government and
implement of the preferential policy of technology and
management,
management shallow geothermal energy and construction
integration projects will receive new life and vigor.

67. www.lanzhou.gov.cn
g