1

BEAM Pro Training and Examination

BEAM Plus – Energy Use for Existing Buildings

Ir Dr T T CHOWTechnical Review Committee Panel Chair (Energy Use )

25 July 2012

1

EU NB

No. of Prerequisites 1

No. of Credits 42

No. of Bonus 2

Credit Summary for NB:EU P1 Minimum Energy Performance EU 1 Annual Energy Use – Reduction of CO2 Emission (15)EU 1 Option 2 Alternative Route: Passive Design (20)EU 2 Peak Electricity Demand Reduction (3)EU 3 Embodied Energy in Building Structure Elements (1+1B)EU 4 Ventilation System in Car Parks (2)EU 5 Lighting System in Car Parks (2)EU 6 Renewable Energy Systems (5)EU 7 Air Conditioning Units (1)EU 8 Clothes Drying Facilities (1)EU 9 Energy Efficient Appliances (2)EU 10 Testing and Commissioning (4+1B)EU 11 Operation and Maintenance (3)EU 12 Metering and Monitoring (1)EU 13 Energy Efficient Building Layout (2)

BEAM Plus – EU Energy Use in New Buildings

3

Section 4 Energy Use (Eu) Credits Alternative Credits

Eu P1 Minimum Energy Performance Prerequisite Prerequisite

Eu1 Reduction of CO2 Emissions 15 6 (Alternative)

Eu 2 Peak Electricity Demand Reduction 3 (Commercial)

2 (Others)

2 (Alternative)

Eu 3 Ventilation Systems in Car Parks 2 Nil

Eu 4 Lighting System in Car Parks 2 Nil

Eu 5 Renewable Energy System 5 Nil

Eu 6 Air conditioning Units 1 Nil

Eu 7 Energy Efficient Appliances 2 Nil

Eu 8 Testing and Commissioning 3 (central A/C)2 (non-central A/C)

Nil

Eu 9 Metering and Monitoring 2 (central A/C)1 (non-central A/C)

Nil

Eu10 Energy Management 4 + 2 Bonus Nil

Total 39 + 2 Bonus

BEAM Plus (EB) – Energy Use

4

Summary of General Distribution of Credits

0123456789

101112131415

Eu 1 O

educ

tion of

CO2 Em

issions

Eu 2 P

eak El

ectri

city D

eman

d Re

duction

Eu 3 V

entil

ation Sy

stem

s in C

ar Parks

Eu 4 L

ighitng Sy

stem

in C

ar parks

Eu 5 R

enew

able E

nergy Sy

stem

s

Eu 6 A

ir Co

ndition

ing Units

Eu 7 E

nergy Ef

ficient A

pplia

nces

Eu 8 T

estin

g an

d Co

mmissio

ning

Eu 9 M

etering an

d M

onito

ring

Eu 10 En

ergy

Man

agem

ent

no. of

cre

dit

credit bonus credit

Total credit: 39 + 2bonus

Alternative

5

EU 1 Reduction of CO2 Emissions (Alternative)

Alternative Credit:

1 credit for compliance with the Code of Practice for Energy Efficiency of Air Conditioning Installations

1 credit for compliance with the Code of Practice for Energy Efficiency of Lighting Installations

6

EU 1 Reduction of CO2 Emissions (Alternative)

http://www.emsd.gov.hk/emsd/eng/pee/eersb_pub.shtml

7

EU 1 Reduction of CO2 Emissions (Alternative)

Alternative Credit:

EMSD’s Energy consumption indicators and benchmarkshttp://www.atechsupports.com/new-emsd/en/index00.htm1 credit where annual energy use 40% cumulative percentage2 credits where annual energy use 30% cumulative percentage3 credits where annual energy use 20% cumulative percentage4 credits where annual energy use 10% cumulative percentage

Energy use reduction demonstrated by billing/metering data

1 credit where annual energy use reduction has been 10%2 credits where annual energy use reduction has been 15%3 credits where annual energy use reduction has been 20%

8

EU 1 Reduction of CO2 Emissions (Alternative)

9

EU 1 Reduction of CO2 Emissions (Alternative)

10

EU 1 Reduction of CO2 Emissions (Alternative)

11

EU 1 Reduction of CO2 Emissions (Alternative)

12

EU 1 Reduction of CO2 Emissions (Alternative)

13

EU 1 Reduction of CO2 Emissions (Alternative)

Need to weight the achievement for complex building based on area

14

EU 1 Reduction of CO2 Emissions (Alternative)

15

EU 1 Reduction of CO2 Emissions (Alternative)

16

EU 1 Reduction of CO2 Emissions (Alternative)

17

EU 1 Reduction of CO2 Emissions (Alternative)

Alternative Credit:

EMSD’s Energy consumption indicators and benchmarkshttp://www.emsd.gov.hk/emsd/eng/pee/benchmarktool.shtml

1 credit where annual energy use 40% cumulative percentage2 credits where annual energy use 30% cumulative percentage3 credits where annual energy use 20% cumulative percentage4 credits where annual energy use 10% cumulative percentage

Energy use reduction demonstrated by billing/metering data

1 credit where annual energy use reduction has been 10%2 credits where annual energy use reduction has been 15%3 credits where annual energy use reduction has been 20%

Demonstrate

1. Initiatives implemented

2. Saving can be maintained

(Audit after building fully occupied or for at least past 3 years)

18

EU 1 Reduction of CO2 Emissions (Alternative)

Energy use reduction demonstrated by billing/metering data

Cumulative Electricity Consumption

05,000

10,00015,00020,00025,00030,00035,00040,000

Jan

Feb

Mar

Apr

May Jun

Jul

Aug Sep Oct

Nov

Dec

1,00

0 kW

h

2007 2008 2009

5,178,000 kWh saving

= 15%

19

EU 2 Peak Electricity Demand Reduction

Credit:

a) Commercial Buildings1 to 3 credits for a reduction in the peak electricity demand by 15%, 23% and 30% respectively (same as new buildings)

b) Hotel buildings1 to 2 credits where a reduction in electricity peak demand by 10% and 20% respectively

c) Educational and Residential Buildings1 to 2 credits where a reduction in electricity peak demand by 8% and 15% respectively

d) Other Building Types1 to 3 credits for a reduction in electricity peak demand by 8%, 12% and 15% respectively

reference to Baseline Model

20

EU 2 Peak Electricity Demand Reduction (Alternative)

Alternative Credit:

Maximum electricity demand reduction demonstrated by billing/metering data

1 credit where a reduction in the electricity maximum demand by 10%2 credits where a reduction in the electricity maximum demand by 20%

21

Cumulative On peak KVA

0

2,000

4,000

6,000

8,000

10,000

Jan

Feb

Mar

Apr

May Jun

Jul

Aug Sep Oct

Nov

Dec

kVA

2007 2008 2009

EU 2 Peak Electricity Demand Reduction (Alternative)

Energy use reduction demonstrated by billing/metering data

Peak Max demand at

July w/ 2,030 kVA

saving

= 22%

22

EU 8 Testing and Commissioning

Credit:

a) HVAC systems and equipmentBuilding with central air-conditioning system1 credit for ongoing commissioning program of water side equipment

1 credit for ongoing commissioning program of air side equipmentAlternative

Building with non-central air-conditioning system1 credit for ongoing commissioning program of all HVAC equipment

b) Non-HVAC systems and equipment1 credit for ongoing commissioning program of all non-HVAC equipment

(3 credits for centrally air-conditioned buildings, otherwise 2)

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EU 8 Testing and Commissioning

1. T&C result & record (original + new)2. T&C approach3. Re-commissioning plan4. A systematic & continuous improvement plan5. Budgets & personnel

Ongoing T&C approach

At least 3 years documentation including

Ongoing Commissioning on

Owner’s Project Requirement (OPR)

Basis of Design (BoD)

Design Construction Operation

Continuous Commissioning for change in operation environment

To Review commissioning

design intent and methods

Commissioning for Equipment &System

Performance

O&M Manual w/ T&C results & records

Re-commissioning Plan

Continuous improvement Plan

24

EU 10 Energy Management

Credit:

a) Energy Auditing1 credit for conducting energy audit (EMSD’s Guidelines on Energy Audit) with evidence

1 BONUS credit for conducting carbon audit or GHG emission audit anddemonstrating that an action plan for GHG reduction is in progress

b) Monitoring and Targets1 credit for demonstrating an effective energy monitoring and targeting system

c) Energy Management Plan1 credit for demonstrating an approved budget to improve the energy performance of the building with management plan

d) Energy Management Manual1 credit for maintaining a comprehensive energy management manual

e) Energy Charge1 BONUS credit where separate charges are made for energy use

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EU 10 Energy Management

Guidelines on Energy Audit (Credit) Carbon audit (BONUS Credit)

Evidence (e.g.):1. Energy consumption records2. O&M records3. Action plan based on audit findings

Evidence (e.g.):GHG reduction action plan

a) Energy Auditing

Energy breakdown by department/major equipment

26

EU 10 Energy Managementb) Monitoring and Target

Energy management - saving progress(2002 as Baseline Year)

-5,000,000

0

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

30,000,000

35,000,000

40,000,000

45,000,000

50,000,000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

Ann

ual k

Wh

savi

ng

bill saving estimates saving predicted saving

target

actual

27

EU 10 Energy ManagementOIE

CmH

3PP

c) Energy Management plan

28

EU 10 Energy Management

Client’s Onus demonstration

d) Energy management manualCumulative investment & savng w/ 2008 as baseline

0

100,000

200,000

300,000

400,000

500,000

600,000

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

cum

ulat

ive

inve

stm

ent

& s

avin

g ($

x,00

0)

cumulative capital cumulative saving

breakeven

Energy management - saving progress(2002 as Baseline Year)

-5,000,000

0

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

30,000,000

35,000,000

40,000,000

45,000,000

50,000,000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

Ann

ual k

Wh

savi

ng

bill saving estimates saving predicted saving

target

actual

A Collection of Documentation including Energy Monitoring, Targeting, Auditing and Planning

Demonstrate

1. Easy-to-follow

2. Up-to-date

Appropriate Financing

Monitoring & Targeting

Planning

29

EU 10 Energy Management

Building with tenants - Energy costs to tenants are separated from base rents and are separately charged by consumption

Single tenant/ownership - Individual departments are separately charged by consumption

e) Energy Charge (BONUS Credit)

1/F Jockey Club Environmental Building,

77 Tat Chee Road, Kowloon, Hong Kong香港九龍塘達之路77號賽馬會環保樓1樓

T +852 3610 5700

F +852 3996 9108

www.beamsociety.org.hk

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EU 8 Testing and Commissioning

Riser A B C D E FkPa 54 55 57 58 56 56

A B C D E F85 110 95 95 100 10080 130 110 105 125 120

Set.

Actual.

A B C D E F85 110 95 95 100 10080 130 110 105 125 120

Set.

Actual.

Riser A B C D E Ffrom 85 110 90 90 100 100

to 75 110 80 80 80 80

Unit: kPa

0

500

1000

1500

2000

2500

3000

3500

4000

27-May-08

28-May-08

29-May-08

30-May-08

31-May-08

01-Jun-08

02-Jun-08

03-Jun-08

04-Jun-08

05-Jun-08

Power of SCHP(kWh/d)

2007 2008

Initial

Stage 1

Stage 1

Result

Stage 2

Ongoing commissioning Waterside System

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WCC-L22-03 (CWE Temp: 27.6~31 deg C)

0.000

1.000

2.000

3.000

4.000

5.000

6.000

7.000

8.000

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Part Load %

CO

P

WCC-L22-03 (CWE Temp: 22.6~27.5 deg C)

0.000

1.000

2.000

3.000

4.000

5.000

6.000

7.000

8.000

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Part Load %

CO

P

EU 8 Testing and Commissioning

Ongoing commissioning Chiller Efficiency

Efficiency dropped !