Download - Glen Hadfield, Westmead Hospital - Environmental Sustainability Considerations in Asset Management and Planning

Environmental Sustainability Considerations in Asset Management and Planning

Glen Hadfield Manager, Asset Systems & Sustainability

Western Sydney Local Health District

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Introduction

• Improving Energy Efficiency in existing facilities (Case Study Westmead Hospital)

– The Environmental Footprint of Westmead Hospital

– Improving Energy Efficiency of major plant

• Feasibility of Embedded Solar Generation in Hospitals

• Empowering staff to reduce office consumption

• Planning for Sustainability in new Healthcare facilities

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Improving Energy Efficiency in existing facilities

Westmead Hospital

Environmental Footprint

2009-10 Pre-Project Baseline

2012-13 2013-14 forecast

Change from Baseline

Electricity (MWhrs) 52,093 48,570 48,000 -8%

Electricity Costs $4,761,152 $5,911,628 $5,700,000 20%

Gas (Gigajoules) 144,122 146,100 130,000 -10%

Gas Costs $936,125 $1,260,962 $1,350,000 44%

TOTAL Costs $5,697,277 $7,172,590 $7,050,000 24%

CO2e tonnes 58,056 54,360 53,439 -8%

Equivalent Cars 12,901 12,080 11,875 -8%

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1st January 2014 – 24th March 2014 13% drop in electricity

despite record heat.


Case Study – Westmead Hospital

Energy Efficiency Upgrades 2012- 2014

• Chiller Upgrade target : – 8% or $500,000 p.a.

• Lighting Upgrade target savings: – 8% or $500,000 p.a.

TOTAL $1,000,000 p.a.

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Westmead Hospital Lighting & Controls Upgrade (Contractor – Total Energy Solutions)

– Scope • 12,798 light fittings upgraded

• Dimmable LED downlights in Lecture Theatres saving up to 80% electricity.

• Phillips Dynalite Lighting Control – 4,000 lights controlled by occupancy sensors – savings yet to be verified

but estimated at > 25% of consumption of the lights controlled.

– Controls mainly Corridor lights

• Upgrade of emergency lighting (EXIT lights)

– Capital Cost $3,728,765

– Long life lamps (75,000 hours) or 8 years

– Completed January 2014

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Westmead Hospital

Lighting Controls Upgrade • Control of 4000 Corridor lights

3 different schedules identified – Patient care areas

– Public areas

– Office areas (8am – 6pm)

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Westmead Hospital Lighting & Controls Upgrade

Outcome

• Lighting Upgrade Savings – 3317 megawatt hours saving (calculation using measurement &

deemed operating hours

– $480,000 p.a.

• Lighting controls upgrade – Estimated savings ~ $50,000 p.a. to be verified

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Air Conditioning Plant Upgrade Contractor - Dalkia

– 2 x 4000kW high efficient TRANE chillers

• Supplies 90% of the air conditioning (cooling) for Westmead Hospital

• 30% savings on electricity

– 10 new energy efficient pumps installed with variable speed drives

– 2 new cooling towers installed

– Total Capital $2.2 million

– Completed November 2012

– Fine tuning of controls ongoing

35 year old CARRIER replaced

New variable flow TRANE chillers

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Air Conditioning Plant Upgrade Outcome

• Chiller Upgrade – verified 2580 megawatt hours p.a. or $375,000 p.a. savings

• Automatic controls and pumps upgrade – in process of fine tuned but likely to be > $140,000 p.a.

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Feasibility of Embedded Solar Generation in Hospitals

Future Projects Solar Photovoltaic

• Pilot Project - 10kW Photovoltaic Installation – to supply Westmead Education Conference Centre ~ saving verified $2,200 p.a.

• Today’s cost of 10kW system ~ $18,000

• Payback ~ 9 years

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Solar Photovoltaics

Opportunity for hospitals

• Peak output of Solar PV coincident with Peak Demand of Hospitals

• Lots of roof space

• Can utilise all in house not dependent on feed-in tariff

Source: http://reneweconomy.com.au/2014/will-iea-and-governments-

be-the-last-to-discover-solar-pv-revolution-80280

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Solar Photovoltaics Opportunity for hospitals

• Ideal of Car Parks and covered walkways.

• Can be used to mitigate additional electrical infrastructure costs by reducing maximum demand (e.g. may be able to forego upgrade of substations and cables.)

Source: http://www.solarselections.co.uk/blog/solar-panels-and-electric-cars-

the-next-legtonenergy

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Business Case for Westmead Hospital

1000 kW Solar PV system • Capital ~ $1.8m

• Output ~ 1,300 megawatt hours or 2.7% of site

• REC Certificates generated 1200 p.a.

• Income

• Savings Grid Electricity ~ $195,000 p.a.

• Value of RECs @ 30ea = $36,000

• Total $231,000 p.a.

• Simple Payback ~ 8 years

• 3,800 panels covering 6,100sqm or ~ 10% of gross area of roof space.

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Feasibility of Embedded Solar Generation in Hospitals?

Risks Renewable Energy Certificates

• Large Generation Certificate (LGCs) price falling due to uncertainty around Liberal Government’s review of the Renewable Energy Target.

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Empowering Staff to Reduce Office Consumption

Empowering staff to reduce office consumption •Estimated Office consumption > $1 million per year (20%)

•Inspiring staff to save Office Energy – 3 determining factors

– Identify Energy Champion in the department to drive efficiency.

– Feedback information about how we contribution to consumption

• How much do computers, the office fridge, photocopiers, ice machines, Zip urns, and microwaves consume. Do your office lights remain on when unoccupied ?

• Contribution of equipment standby power.

– Simple Tool(s) to equip staff to make a difference

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“Everything should be made a simple as possible but no simpler” – Albert Einstein.


Empowering staff to reduce office consumption • The “plugwise” solution.

– Controls everything in your office at the plug level

– Provides daily and hourly consumption information of your site

– Enables you to schedule equipment on/off

– Lighting can be controlled by sensors.

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Empowering staff to reduce office consumption

• The “Plugwise” solution. – Pilot Project – Westmead Hospital Asset Services. Project

installed 15 Oct 2013

– 81 modules, on 54 Appliances

– Lighting & Appliance Control with wireless intelligent switching, no rewiring

– Minimal interruption during installation

– Take control of wasted electricity and reduce energy consumption

– Increase awareness and change behavior

– Full control and Visibility and Easy Self Management

– Payback around 3-6 years depending on scale of project and existing tariff rates

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Empowering Staff to Reduce Office Consumption - 2 weeks Lighting WITHOUT appliance control

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Light being left on, no control

Empowering Staff to Reduce Office Consumption - 2 weeks lighting with appliance control

Lights OFF when NO occupation turning off more frequently

Base Line 220 watts – Can be reduced

significantly

System left on when people have gone home – Can be reduced significantly


- without appliance control - Aircon left on for extended periods

Standby power removed, controlled with a Schedule

Empowering Staff to Reduce Office ConsumptionSchedules Implemented to AC units

Schedule Implemented


-Actual Saving after schedules implemented

Baseline as high as 308 watts over a weekend


-Copiers always on with very high standby power


-Copiers with Actual Schedules

Planning Sustainability into New Facilities

•How to improve the uptake of Sustainable Initiatives in new facilities

– New hospital facilities mandatory 4 star rating

• Currently nominal only – no need to undergo independent verification.

– Project Management approach ignores legacy issues of existing infrastructure.

• Continuing dichotomy between Capital and Recurrent.

• Legacy issues of existing infrastructure considered responsibility of LHDs to fund out of recurrent budget.

– Decision Makers need to enforce Sustainability into the agenda at very early stage

• Increased investment in most energy efficient plant.

• Quarantine capital for installing embedded renewable generation.

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Planning Sustainability in New Facilities

New Development Case Study – Mt Druitt Hospital

• Mt Druitt Hospital – chronic air conditioning shortage in summer months – need to main Chiller plant.

• Business case focused on project outcomes, not whole of facility outcomes.

• Instead of upgrading central chiller plant, packaged air conditioning units were installed to extensions in lieu of upgrading central plant.

• Package units installed immediately above central chiller plant.

• Upgrading central plant should have been identified at Project Definition Phase

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Planning Sustainability in New Facilities

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•Lessons learnt – New Capital Projects offer a one in 40 year opportunity to get the

building energy efficient

– Retrofitting energy efficiency is both very expensive and logistically far more complex.

– Need for holistic approach that uses business case covering long term operational costs of whole building

– Need to be more specific in defining the energy efficient technologies to be installed in new projects.

– Good space management and operational efficiency have major impact on energy and water efficiency.

Conclusion

Questions ??

Glen Hadfield, B.E. MBA, CPEng, MIHEA

Manager, Asset Systems & Sustainability

Western Sydney Local Health District

Ph 02 9845 8751

Email : [email protected]

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