ENERGY EFFICIENCY PROJECT REPORT(ENERGY AUDIT)

For 

The Submission Of Application To Be A Registered Electrical Energy Manager Under Efficient Management Of Electrical Energy Regulations 2008

Universiti Malaysia Perlis (UniMAP)Department of Development Building

MUHAMMAD ARKAM BIN CHE MUNAAIM(Mega Jati Consult Sdn Bhd)

12 JUNE 2015

Overview Building Description Historical Energy Consumption Load Profile And Energy Apportioning Data Collections Finding And Recommendation Conclusion

CONTENT

OVERVIEW

Mega  Jati  Consult  Sdn  Bhd  (MJC)  in  2012-2013  was  appointed  to  conduct  an energy audit (feasibility study) at 8 (eight) UniMAP’s premises in Perlis.

More than 30 scattered UniMAP’s buildings in Perlis, initiatives driven by School of Environmental Engineering UniMAP was desired to know the actual condition of energy  consumption  and  investigate the awareness of  being  efficient  among the building occupants.

The  audit  is  conducted  by  2 approaches,  awareness  questionnaire  to  the building occupants and data collection with observation using portable devices. 

The  audit  is  refers  to  MS1525:2007 and  Malaysian GBI Rating as  a comparison. Meanwhile Electrical Supply Act 1990 and Efficient Management of Electrical Energy Regulation (EMEER) 2008  are  used  as  a  guideline  to  overall objectives in this audit.

TEAM MEMBER

Muhammad Arkam Bin Che Munaaim  (Leader-Contact Person)Head of auditor for data collection, data analysis, building design review, passive design element observation, reporting findings and recommendation.Assoc Prof Dr. Rodzi Bin Ismail (CETREE USM-Reviewer)Aida Zuriani Binti Zulkafli (Assist Elec Eng)- data collection and data entry.Nurfirdatulhusna Binti Abd Ghani (Assist Mech Eng) )- data collection and data entry.Nur Syafiqah Zakaria (Technical Assistant) - data collection and data entry.Nor Shahida Abd Razak (Technical Assistant) - data collection and data entry.

THE PROCESS

FACT FINDING INITIAL MEASUREMENT

AWARENESS INTERVIEW

DATA COLLECTION

CONCLUSION AND RECOMMENDATION

BUILDING DESCRIPTIONNo. Building Usage No. of level Year of

completionOccupied Area (m2)

1.Department of Development 

UniMAP (65 staff)

Administration/ Finance/ Engineering

Total 10 compartments in 3 stories building

2003 1120.00

THE AUDITED BUILDING

FRONT

Historical Energy Consumption (12 months)

Monthly estimated electrical consumption and costs from March 2012 to February 2013

Month (Estimate) kWh* Cost (RM)

Mar 2012 30,817 9,615Apr 2012 27,317 8,523May 2012 23,246 7,253Jun 2012 29,942 9,342Jul 2012 24,397 7,612Aug2012 17,775 5,546

Sept 2012 32,410 10,112Oct 2012 42,080 13,129Nov 2012 24,560 7,663Dec 2012 21,967 6,854Jan 2013 27,418 8,554Feb2013 20,473 6,387

12 MONTH 322,402 kWh RM 78,795 Mar-12

Apr-12

May-12

Jun-12Jul-12

Aug-12

Sep-12

Oct-12

Nov-12

Dec-12Jan-13

Feb-13

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

kWhRM

Load Profile and Energy Apportioning

Building End-use Energy ApportioningEnd-Use Loads Approximate kWh/year %**Lighting 67,382 20.9Air Conditioning 207,304 64.3Office Equipments 32,885 10.2Others 14,830 4.6TOTAL 322,402 kWh 100%

Estimate building end-use energy apportioning**Apportioning based on measurement of electrical board distribution during auditing.

BEI = 287 kWh/m2/year (compared to benchmark GBI 90 – 150 for Green Building)

HIGH ENERGY USER

Load Profile and Energy ApportioningEstimate building end-use energy apportioning**Apportioning based on measurement of electrical board distribution during auditing.

67,382

207,304

32,88514,830

Lighting 

Air Conditioning

Office Equipments

Others

By knowing that the major contribution of energy consumption is for air conditioning and lighting, the potential of saving is obtainable for these elements.

Data Collections

Data Collections

Finding and Recommendation: Building-Passive Strategies

Recommendation:

Shading façade shall be use and replace total dark tinted film to see through UV protected film to encourage more daylighting inside building but aware on the solar heat gain.

Finding and Recommendation: Building-Passive Strategies

Recommendation:

Relocate the internal racking system so that the lighting will not be blocking (either natural lighting or artificial lighting)

Finding and Recommendation: Building-Passive Strategies

Recommendation:

Identify the potential daylighting zone and utilize the daylight instead of using artificial light. Re-arrange the floor layout if neccesary to optimize the daylighting from outside.

Finding and Recommendation: Some Active Strategies

Recommendation:

Introduce “timer setting” for air conditioning unit since lot of staff are site-based and actively commute to do servicing out of the office. They tend to leave the AC unit ON even not in use (no occupant). Numbers of overall AC unit = 48 with total of 72 HP.

Finding and Recommendation: Some Active Strategies

Recommendation:

Re-partition the overall office space especially in the area where daylight not utilise. Some of the area near to the window is not required to switch on the light during daytime

Finding and Recommendation: Some Active Strategies

Recommendation:

Plug the leak through open door and door closer is cheap solution. Maintain the light fitting by replacing the faulty part to ensure sufficient lux at working space.

Finding and Recommendation: Behavioural and Awareness

Recommendation:

Awareness campaign/training on energy efficiency and poster notice to put at strategic places to improve awareness on EE among occupants.

Finding and Recommendation:

It  is  found  that  the  building  has  3  separate  energy meters  but that with  intention to measure the different office-block energy usage.  It  is  highly  recommend  to  change  the  metering  system from by block-connected to by load-connected to help in energy management and recording.

All  these  low-cost  actions  is  estimated  to  reduce  the  energy usage by 10%. This is due to possibility to decrease the BEI for as high as 287 kWh/m2/year to 250 kWh/m2/year as achievable in same building category as audited building.

Finding and Recommendation: Next Approach

Since  lighting  is  contributed  to  21% of  energy  used  in  this building,  mitigate  the  lighting  fitting  from  normal  2x4  double fluorescent light to energy saving fitting is desired next:

Number of light fittings (Overall) = 153 numbers(153 numbers) :  (36W x 2) + (5 W normal ballast x 2) 

Then, Each fitting contribute estimate 82 Watt

All fittings 82W x 153 = 12,546 W = 12.5 kW total existing light

Finding and Recommendation: Next ApproachTo  change  the  overall  light  fittings  to  electronic ballast with T5 light fitting (total 46.2 Watt) overall  estimated  new  total connected load for lighting:

Number of light fittings (Overall) = (153 numbers  x 46.2W) = 7,069 Watt, new connected light load.

Finding and Recommendation: Next ApproachHence, the possible saving on lighting:

As installed lightings : 12.5 kW Proposed new type of lightings : 7.1 kW

Estimated energy saving from new T5 lighting per year

: 12.5 – 7.1 = 5.4 kW potential saving from new lightings: 5.4kW / 12.5kW * 100 = 43% potential saving: 0.43 x 67,382 = 29,109 kWh/year in year kW saving: Potential saving @ 0.31 cent = RM 9,024 / year.

Simple Payback Calculation (ROI)The expected investment:

Light Fittings : RM 45.00Installation : RM 30.00

Estimated installation cost 153 x RM 75 = RM 11,475

Potential Saving from new T5 lighting:

: RM 11,475 / RM 9,024: 1.27 Years ± 1.3 years.

NEB: ENVIRONMENTAL SAVING (CO2)

The  CO2  saving  from each kilowatt  electricity  energy  saved  is estimated at 740 gram (Malaysia) :

Potential Estimated CO2 Saving from new T5 lightings:

: 29,109 kWh/year ÷ 24hr = 1,213 kW/year: 1,213 kW/year X 0.74 kg/kW: 897 kg/year estimated CO2 Saving

Finding and Recommendation: Very Next Approach

Since  air  conditioner  is  contributed  to 60% of  energy  used  in this  building,  some  engineering  control  for  any  wastages  of energy  due  to  bad  human  habit  is  really  helpful  such  as  timer switch:

Finding and Recommendation: Quick View

1) Photocells control for corridor lighting (ground floor)2) Motion sensor control for staircase less-occupied area.3) Reduced heat gain  from above ceiling  space  (attic) by using turbine  ventilator  to  minimize  heat  conduction  through ceiling panel for top floor building.

4) Introduce remote-passive-daylighting to area which can’t be reached by natural daylight through normal fenestrations.

5) Rewarding  the  unit  member  when  saving  energy  target  is achieved.

6) Continuously record and monitor the energy usage.

SUMMARY

ENERGY SAVING OPPORTUNITIES

LOW-COST:Implement Passive Design:- Shading and change the total dark tinted film at building envelope.

- Relocate the internal arrangement.- Utilize daylighting- Change furniture block lighting- Maintenance well- Awareness campaign

MEDIUM-COST:Some Initial final Fitting Changes- Mitigate to T5 light fittings- Imposed automatic OFF timer to the individual AC (must be at 2 pole switch)

- Apply motion sensors, light sensors and turbine ventilator, r-s-daylight.

- Maintenance well

Awareness and administrative control, campaign, incentives, remark the success, check and review, monitor and improve.

CONCLUSION

Even  with  all  measures  taken  to  ensure  EE  application  is imposed, the main factors that contribute to the success rate is the human behaviour and awareness.

By  understanding  that  electrical  energy  wastage  somehow related  to  non  renewable  fossil  fuel  generating  somewhere  far from  their  points  of  switches,  with  some  awareness,  they  will have  their  own  conscious  and  resulting  simple  energy  efficient action individually. 

THANK YOU