Please contact:Robin Bisarya, CCOMBH NRG LLCRobin@mbhnrg.com

2

IntroductionD

LF Limited, is India's largest real estate

company in term

s of revenues, earnings, m

arket capitalisation and d

evelopable area. It has a 62-year track record

of sustained grow

th, customer satisfaction,

and innovation. The com

pany has approxim

ately 238 msf of com

pleted

developm

ent and 423 m

sf of planned

projects, and has pan Ind

ia presence across 30 cities.

DLF's prim

ary business is developm

ent of resid

ential, comm

ercial and retail

properties. The company has a unique

business mod

el with earnings arising from

developm

ent and rentals. Its exposure across businesses, segm

ents and

geographies, mitigates any d

own-cycles

in the market. D

LF has also forayed into

infrastructure, SEZ and hotel businesses.

DLF C

ity Gurgaon is d

ivided

into five phases w

ith total area 120 million sq.ft.,

DLF C

yber City is phase 3 includ

ing more

than 10 buildings like D

LF Building 10,

Infinity Tower, D

LF Cyber G

reen, Gatew

ay Tow

er etc., and the Build

ing 10, Building 5

and Build

ing 14 are the biggest CHP cases

in the world

.

Economicas

In India, the conventional generation efficiency is

32%-56%

, the energy loss in transfer is 8%, and

total efficiency of the system

is 30%-51%

. But for CHP

system, 40%

-50% of the w

aste heat from generator

can be used, so total efficiency of the system

can rea

ch 70%-90%

.

This district is using 59 units of generators, 33 units of

BROA

D non-electric chillers. The generation

efficiencyis 30%

-35%, and

BROA

D N

on-electric Air C

on. (BZHE &

BE) can recover 85%-95%

waste heat, after this

step-utilizing waste heat, the total efficiency of the

system is increased

to 85%. From

here we can see

BROA

D N

on-electric Air C

on. play important part in

energy-utilizing for the CHP system

.

In India, the air cond

itioning price of office building is

around 0.2-0.3 USD

/ sq.ft.*month, after using BRO

AD

non-electric air cond

itioning and d

istributed C

HP system

, the air conditioning cost is only 0.04 USD

/ sq.ft.*m

onth. The investments of the w

hole system can

payback within 1 year.

Com

pared w

ith electric air conditioning:

�Red

uce the power dem

and by 100,000 kW

. �

Reduce the pow

er consumption by 65,000 kW

. �

Reduce natural gas consum

ption by 70 million

cubic meters yearly.

�Red

uce CO

2 emission by 36,000 tons yearly.

�Equa

l to plant 1.9 million trees.

Advantages:

�High reliability, avoid the electric pow

er crisis caused by accid

ent such as power grid

breakdow

n, d

isaster (earthquake, snowstorm

, war) etc.

�Red

uce emission of the greenhouse gases

(N2 O

,CFC

)causing global warm

ing. �

Reduce the temperature of exhaust from

generator�

Reduce the m

achine room area request.

�D

isposed sew

age can be used to co-generation

and air cond

itioning device.

Pleasecontact:

Robin

Bisarya,C

CO

MB

HN

RG

LLCR

obin@m

bhnrg.com

3

DLF Cyber C

ity District Cooling System

Diagram

1-DLF Build

ing 10 2-DLF Building 8 3-D

LF Infinity Tower 4-G

ateway Tow

er 5-Ericcson Forum 6-D

LF Building 14

7-DLF Build

ing 6 8-DLF Building 9A

9-DLF Build

ing 9B 10-DLF C

yber Green 11-D

LF Building 7 12-DLF Building 5

Note

Building A

rea is 30 m

illion sq.ft.

Air-con A

rea is 18 million sq.ft.

4

DLF Building 10

DLF Building 10 Energy System Diagram

4x5.5M

W G

T + 4xBE1000 + 5x4.2MW

GG

+ 5xBZHE400

An

integrated

technology Park

offering m

odern w

orkspace to IT/ITES companies.

Description of Machines

Gas G

enerator: Turbom

ach 5.5M

W×4 units

MW

M 4.2M

W×5units

Absorption C

hillerBE1000×4 units (cooling capacity 3,150 RT for each unit) BZHE400×5 units (cooling capacity 1,100 RT for each unit)

Features: N

atural gas power generation; C

ooling by w

aste heat from pow

er generation; Total 40 M

W pow

er & 18,100 USRT cooling to D

LF Build

ing 10, Building 8, Build

ing 9A, 9B &

DLF

Cyber G

reens.

5

BROA

D Exhaust Chiilers

Parameters of BRO

AD Exhaust C

hiilers Chiller Exhaust G

as Inlet

Machine Room

Equipment D

rawing

Exhaust Type

: 5.2MW

GT + BE1000

Manufacturer

BROA

D

Mod

el BE955IX520-d

-1000 Q

uantity 4 units

Cooling C

apacity per unit 3,150 RT

Total Cooling C

apacity

12,600 RT C

hilled W

. Outlet/Inlet Tem

p. 7 D

eg. C / 14 D

eg. C

Cooling W

. Outlet/Inlet Tem

p. 37.5 D

eg. C / 32 D

eg. C

Energy 520 D

eg. C Exhaust G

asExhaust G

as Ma

ss Flow Rate

73,800 kg/h

Na

tural gas

Ga

s turbine

Exhaust 520

Exhaust chiller

Chilled w

ater 7

Efficiency 78%

Heating wa

ter 65Efficiency 51%

Electricity Efficiency 35%

BR

OA

D E

xhaust Chiller B

E1000

Pleasecontact:

Robin

Bisarya,C

CO

MB

HN

RG

LLCR

obin@m

bhnrg.com

6

BROA

D Multi- Energy C

hillers

Parameters of BRO

AD M

ulti- Energy Chillers

Manufacturer

BROA

D

Model

BZHE333XBD-463-80/90-d-400

Quantity

5 units C

ooling Capacity per unit

1,100 RT Total C

ooling Capacity

5,500 RT C

hilled W

. Outlet/Inlet Tem

p. 7 D

eg. C / 14 D

eg. C

Cooling W

. Outlet/Inlet Tem

p. 37.5 D

eg. C / 32 D

eg. C

Energy 463 D

eg. C Exhaust G

as, 80 / 90 Deg. C

Jacket W

. and

N.G

., HSD

for backup burner Exhaust G

as Ma

ss Flow Rate

20,898 kg/h Jacket W

. Flow Rate

137 m3/h

Machine Room

Equipment D

rawing

N.G

., Exhaust & Jacket W

. Type: 4.2 M

W G

G + BZHE400

Na

tural gas

Gas engine

Exhaust 463

Jacket w

ater 90

hot wa

ter & d

irect-fired chiller

Chilled

wa

ter 7Efficiency 66%

Heating w

ater 65

Efficiency 46%

Electricity Efficiency 38%

BROA

D M

ulti-Energy Chillers BZHE400

7

DLF Building 5

Parameters of BRO

AD Exhaust C

hiilers

Parameters of BRO

AD M

ulti- Energy Chillers

Manufacturer

BROA

D

Model

BZHE333XBD-463-80/90-d-400

Quantity

5 units

Cooling C

apacity per unit 1,100 RT

Total Cooling C

apacity 5,500 RT

Chilled

W. O

utlet/Inlet Temp.

7 Deg. C

/ 14 Deg. C

Cooling W

. Outlet/Inlet Tem

p. 37.5 D

eg. C / 32 D

eg. C

Energy 463 D

eg. C Exhaust G

as, 80 / 90 Deg. C

Jacket W

.

and N

.G., H

SD for backup burner

Exhaust Gas M

ass Flow

Rate 20,898 kg/h

Jacket W. Flow

Rate 137 m

3/h

Manufacturer

BROA

D

Mod

el BE955IX520-d

-1000

Quantity

4 units

Cooling C

apacity per unit 3,150 RT

Total Cooling C

apacity

12,600 RT

Chilled

W. O

utlet/Inlet Temp.

7 Deg. C

/ 14 Deg. C

Cooling W

. Outlet/Inlet Tem

p. 37.5 D

eg. C / 32 D

eg. C

Energy 520 D

eg. C Exhaust G

as

Exhaust Gas M

ass Flow

Rate 73,800 kg/h

The building offers over 2 million sq.ft

(approx) of w

orkspace spread over 3

interconnected blocks.

Description of Machines

Gas G

enerator: Turbom

ach 5.5M

W×4 units

MW

M 4.2M

W×5units

Absorption C

hillerBE1000×4 units (cooling capacity 3,150 RT for each unit) BZHE400×5 units (cooling capacity 1,100 RT for each unit)

FeaturesN

atural gas power generation; C

ooling by w

aste heat from pow

er generation;Total 40 M

W pow

er & 18,100 USRT cooling to D

LF Build

ing 5, Building 6,Build

ing 7A, 7B &

DLF

Building 14.

8

DLF Building 8

Parameters of BRO

AD M

ulti- Energy Chillers

Manufacturer

BROA

D

Mod

el BZHE150IXBD

-485-92/98-k-B2 Q

uantity 4 unit

Cooling C

apacity per unit 496 RT

Total Cooling C

apacity 1,984 RT

Chilled

W. O

utlet/Inlet Temp.

7 Deg. C

/ 12 Deg. C

C

ooling W. O

utlet/Inlet Temp.

37.5 Deg. C

/ 32 Deg. C

Energy

485 Deg. C

Exhaust Gas, 92 D

eg. C / 98 D

eg. C Jacket W

. and N

.G., Light O

il for backup burner Exhaust G

as Ma

ss Flow Rate

8,149 kg/h Jacket W

. Flow Rate

105 m3/h

Machine Room

Equipment Draw

ingN

.G., Exhaust & Jacket W

. Type

Build

ing 8 is spread across an area of approx

1.4 million sq.ft. It is d

ivided

in to 3 blocks (8A,

8B & 8C

),with a range of 4-9 floors

Description of Machines

Gas G

enerator: C

aterpillar 1.4MW

×4 units

Absorption C

hillerBZHE150×4 units (cooling capacity 496 RT for each unit) FeaturesN

atural gas power generation; C

ooling by exhaust gas and

jacket water from

power

generation.

Na

tural gas

Gas engine

Exhaust 485

Jacket w

ater 98

hot wa

ter & d

irect-fired chiller

Chilled

wa

ter 7Efficiency 66%

Heating w

ater 65

Efficiency 46%

Electricity Efficiency 38%

9

DLF Infinity Tower

District Pipe Line &

Gas Station

Parameters of BRO

AD M

ulti- Energy Chillers

Manufacturer

BROA

D

Mod

el BZHE150IXBD

-485-92/98-k-B2

Quantity

7 unit

Cooling C

apacity per unit 496 RT

Total Cooling C

apacity 3,472 RT

Chilled

W. O

utlet/Inlet Temp.

7 Deg. C

/ 12 Deg. C

Cooling W

. Outlet/Inlet Tem

p. 37.5 D

eg. C / 32 D

eg. C

Energy 485 D

eg. C Exhaust G

as, 92 / 98 Deg. C

Jacket W.

and N.G

., Light Oil for backup burner

Exhaust Gas M

ass Flow

Rate 8,149 kg/h

Jacket W. Flow

Rate 105 m

3/h

Three interconnected tow

ers (A, B, C

) scaling betw

een10-12 storeys. Spread

across 1.2 m

illion sq.ft of space.

Description of Machines

Gas G

enerator: C

aterpillar 1.4MW

×4 units

Absorption C

hillerBZHE150×7 units (cooling capacity 496 RT for each unit)

FeaturesN

atural gas power generation; C

ooling by exhaust gas and

jacket water from

power

generation.

Pleasecontact:

Robin

Bisarya,C

CO

MB

HN

RG

LLCR

obin@m

bhnrg.com

10

DLF Building 9A & 9B

9 A and

9 B are perfectly located

in between Ericsson build

ing and

DLF C

yber Greens. The m

ajestic tow

ers of 1.25 mn. Sq.ft.(approx)

spread over tw

o independ

ent build

ings.

DLF Cyber G

reenThis Land

mark com

plex is spread

across an area of 900,000 (a

pprox.) sq.ft. The complex

constitutes five blocks / towers

each scaling to 10-18 storeys.

DLF Building 7A, 7B

Building 7A

, 7B, the built-to-suit office space d

eveloped for

Standard

Chartered

& RBS is

spread across an area of 1 m

illion sq. ft..

DLF Gatew

ay Tower

Gatew

ay Tower acts as the

gateway to the 3000-acre

landmark city of D

LF. This 12-storey com

plex is spread

across an area of 85,000 sq.ft..

DLF Building 14 The m

odern w

ork spaces of Building 14 lend a distinctive appeal to this aesthetically d

esigned architectural w

onder.

Spread over 2 m

illion sq.ft. approx.

Ericcson Forum

Ericcson Forum represents

company's Ind

ian Corporate

Office and

consolidate its

multiple offices in the N

ational C

apital Region (NC

R). Spread

over 170,000 sq.ft. approx.

DLF Building 6 A

n integrated technology park

offering mod

ern workspace to

the IT and ITES companies. This

building is across an area of 2

million sq.ft.

Pleasecontact:

Robin

Bisarya,C

CO

MB

HN

RG

LLCR

obin@m

bhnrg.com

11

Economic Data From

DLF Official W

ebsite

DLF Infinity Tower Pow

er Consum

ption Com

parison Chart

Conventional System

Using electrical chillers

Co-gen w

ith CHP

Using absorption chillersElectrica

l Energy12.25M

W

Electrical Energy9.8M

W

Air C

onditioning

4,000RT Free A

/C ava

ilable from w

aste heat recovery3500RT

Heat energy of flue gas is released to atm

osphereEquivalent electrical energy saved

: 2,450KW

/ Percentage of energy saved

: 20-25%

Com

parison Between C

onventional System and C

HP

Item

Centralized

Generation

Distributed

Generation

Delivered

Power

2,000MW

2,000M

W

Capital C

ost G

eneration 2.22 billion

2.34 billion Increm

ental T&

D

2.22 billion 0.23 billion

Total C

apital C

ost 4.44 billion

2.57 billion Fuel C

ost for 20 years

13.08 billion 5.49 billion

Total C

ost for 20 years

17.53 billion 8.06 billion

Unit Cost for G

eneration 95.6/M

Wh

49.3/MW

h A

nalysis from Ind

ia Centre for Fuel Stud

ies and Research has concluded

that the unit cost DE sources

such as CHP over 20 years lifespan can be about half as m

uch as Centralized

option.

Heat energy of flue gas is released to atm

ospherePercentage of energy saved

: 20-25%

Free A/C

available from

waste heat recovery

BR

OA

D C

HP M

odesM

odel 1Exhaust type Energy efficiency: electricity+cooling 113%

electricity+heating 86%

Model 2

Exhaust & direct-fired type Energy efficiency: electricity+cooling 113%

electricity+heating 86%

Model 3

Exhaust, hot W. &

direct-fired type Energy efficiency: electricity+cooling 104% electricity+heating 84%

Model 4

Steam type Energy efficiency: electricity+cooling 110%

electricity+heating 85%

Na

tural gas

Ga

s turbine

Exhaust 500

Exhaust chiller

Chilled

wa

ter 7Efficiency 78%

Heating w

ater 65

Efficiency 51%

Electricity Efficiency 35%

Na

tural gas

Ga

s turbine

Exhaust 500

Exhaust chiller

Chilled

wa

ter 7Efficiency 78%

Heating w

ater 65

Efficiency 51%

Electricity Efficiency 35%

Na

tural gas

Gas engine

Exhaust 500

Jacket w

ater 98

hot wa

ter & d

irect-fired chiller

Chilled

wa

ter 7Efficiency 66%

Heating w

ater 65

Efficiency 46%

Electricity Efficiency 38%

Burn garbageW

aste hea

t

Industria

l w

aste hea

t

Waste heat

from pow

er generation

Heat recovery

boiler

High p

ressure steam

Steam

turbine

Hea

t exchanger

Low p

ressure steam

Steam chiller

Chilled w

ater 7Efficiency 75%

Heating water 65

Efficiency 50%

Electricity Efficiency 35%