OEH Energy Efficient HVAC for Business Training Course

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Hester Wright
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1 OEH Energy Efficient HVAC for Business Training Course Presenter: Chris Warris, BCW Carbon and Energy

2 Agenda for Today Overview of OEH Energy Efficiency Training Program Outline of OEH Energy Efficient HVAC for Business Training Course: Target Audience(s) Aims Format of Training, Including Post-Training Support Offerings Outline of Topics Covered in the Training Course Details of Upcoming Courses

Audience(s) Aims Format of Training, Including Post-Training Support

average of 15 participants Subsidised course fees, typical pricing: Sydney metro: $200 Regional NSW: $100

3 General: Energy management basics; Building the business case; PIAM&V Technologies: Lighting; Cogeneration; Commercial Refrigeration; HVAC Sectors: Aged care; Registered clubs Face to face training; average of 15 participants Subsidised course fees, typical pricing: Sydney metro: $200 Regional NSW: $100 NSW Energy Efficiency Action Plan (EEAP) OEH Energy Efficiency Training Courses Custom courses: $2,000 (per organisation)

4 Why is HVAC Energy Efficiency Important? HVAC (and Refrigeration) in Australia: 22% of national electricity consumption 45 million individual installations $6 billion in capital investment per annum, ~$100 billion installed HVAC&R infrastructure 12% of national Greenhouse Gas emissions From Cold Hard Facts 2, Dept of the Environment, 2013

million individual installations $6 billion in capital investment per annum, ~$100

5 Why is HVAC Energy Efficiency Important? Whole Building Energy End Use Breakdown Best practice optimization, operation & maintenance of existing systems can deliver savings of >50% Even higher savings achievable by upgrading major plant.

optimization, operation & maintenance of existing systems

6 OEH Energy Efficient HVAC for Business Training Course Module one: Introduction to energy efficient HVAC (Half Day) Aimed at building owners, executive managers, sustainability/ environment officers, operations and facilities managers (i.e. anyone involved in managing or operating buildings) Module two: Energy efficient HVAC optimisation, operation and maintenance strategies (Full Day) Aimed at personnel directly involved in the day-to-day operation, maintenance & technical aspects of HVAC systems (e.g. facility managers, mechanical services consultants/contractors and technical service providers)

Module two: Energy efficient HVAC optimisation, operation and maintenance strategies (Full Day) Aimed at personnel directly involved in the day-to-day

7 Drivers, Barriers and Stakeholders for HVAC Energy Efficiency Steps to Achieving HVAC Energy Efficiency (Energy Management Planning) What Makes a High Performing Building? HVAC Equipment and Energy Consumption Low Emissions Refrigerants Optimisation Strategies OEH Energy Efficient HVAC for Business Training Course HVAC Course Topics Operation and Maintenance Strategies How to Assess HVAC Improvement Opportunities in Your Organisation Site Tour of HVAC Plant Room Post-Training Technical Support.

HVAC Equipment and Energy Consumption Low Emissions Refrigerants Optimisation Strategies OEH Energy Efficient HVAC for

(CBD) Save money, enhance asset values, increase profits and

8 Drivers for HVAC Energy Efficiency Rising energy prices NABERS and Green Star ratings Commercial Building Disclosure (CBD) Save money, enhance asset values, increase profits and tenancy rates Growing stakeholder awareness and higher expectations.

9 Barriers to HVAC Energy Efficiency There are multiple stakeholders HVAC systems can be technically complex Buildings change over time equipment ages, new tenants bring new fit outs etc HVAC systems tend to be invisible until something significant fails problems are often masked by consuming more energy Solution: Energy Management Planning

new fit outs etc HVAC systems tend to be invisible until something significant fails

10 Energy Management Planning Steps to Achieving HVAC Energy Efficiency Where are we now? How do we stay there/improve further? Where do we want to be? How will we know when we have got there? Who is going to get us there? How are we going to get there?

How do we stay there/improve further? Where do we want to be?

11 How to Improve Building Performance Increase Energy Awareness of occupants Reduce Internal Building Loads Improve Thermal Performance Improve Operation, Optimisation & Maintenance of existing HVAC Systems Upgrade HVAC Equipment.

Improve Thermal Performance Improve Operation,

12 HVAC Energy Consumption Energy breakdown for a typical commercial office building in Sydney Climate Source: DCCEE - Guide to Best Practice Maintenance & Operation of HVAC Systems for Energy Efficiency

13 HVAC Optimisation Opportunities Two broad approaches to improve HVAC energy efficiency: Optimise operation of existing equipment (low cost) Replace existing equipment (higher cost) Low (or no) cost HVAC optimisation opportunities are discussed in the training course The opportunities are taken from the OEH/AIRAH HVAC Optimisation Guide

cost HVAC optimisation opportunities are discussed in the training course The opportunities are

14 HVAC Optimisation Strategies SYSTEM SUPERVISORY CONTROL OPTIMISATIONS Optimum Start/Stop Programming Space Temperature Set Point And Control Bands Master AHU Supply Air Temperature Signal Staging Of Chillers And Compressors PLANT CONTROL PARAMETER OPTIMISATIONS Duct Static Pressure Reset Temperature Reset Resetting Heating Hot Water (HHW) Delivery Temperature; Resetting Chilled Water (CHW) Delivery Temperature; Resetting Condenser (CHW) Water Delivery Temperature; Retrofit of Electronic Expansion Valve.

OPTIMISATIONS Duct Static Pressure Reset Temperature Reset Resetting Heating Hot Water (HHW) Delivery Temperature; Resetting

15 HVAC Optimisation Strategies VENTILATION AND AIRFLOW OPTIMISATIONS Economy Cycle Night Purge Demand Control Ventilation controlling CO 2 /CO for occupied spaces, carparks & loading docks VARIABLE SPEED BASED OPTIMISATIONS Optimised Secondary Chilled Water Pumping Variable Head Pressure Control (Air & Water Cooled Condensers) OTHER HVAC OPTIMISATION OPPORTUNITIES Optimising Existing Fan/Pump Distribution Systems, Rebalancing Distribution Systems, Duct Leakage, Optimising Boilers, Demand Response, Occupancy Control, Free Water-side Cooling.

Variable Head Pressure Control (Air & Water Cooled Condensers) OTHER HVAC OPTIMISATION OPPORTUNITIES Optimising Existing Fan/Pump

16 Energy Efficient HVAC Operation and Maintenance HVAC energy efficiency strategies are rarely set & forget Most can be un-done as easily (or even more easily) as they are implemented, e.g. Set points, operating times & other control parameters can be altered deliberately or inadvertently Many rely on sensors, actuators, VSDs etc to be working properly these are items that periodically fail Building loads may change (occupancy, lighting etc) Control strategies and equipment must therefore be regularly reviewed and maintained.

Set points, operating times & other control parameters can be altered deliberately or inadvertently Many rely on sensors, actuators,

17 Energy Efficient HVAC Operation and Maintenance Three key strategies can contribute to a best practice operation & maintenance program: 1) Develop and implement an energy management plan 2) Deliver energy based training for occupants, operations staff, and maintenance contractors 3) Target maintenance delivery for energy efficiency outcomes These strategies are discussed in more detail in the HVAC Training.

based training for occupants, operations staff, and maintenance contractors 3) Target maintenance

18 Post-Training Support: To assist with project implementation and case study development OEH contributes up to $3000 Client fee of $300 OEH Energy Efficiency Training Courses The aim is for participants to implement energy saving projects!

up to $3000 Client fee of $300 OEH Energy Efficiency

19 Upcoming OEH HVAC Courses Sept 22 HVAC Module 1 Sept 23 HVAC Module 2 Nov 25 HVAC Module 1 Nov 26 HVAC Module 2 Special Offer for AIRAH Members: 50% discount for all remaining HVAC courses in Use the offer code AIRAH_2015 when booking through the OEH website:

discount for all remaining HVAC courses in 2015.

Case Study. Commercial Building Energy Efficiency Retrofit 4 Mort Street, Canberra. Results. Background PEOPLE PRACTICES SYSTEMS

Case Study. Commercial Building Energy Efficiency Retrofit 4 Mort Street, Canberra. Results. Background PEOPLE PRACTICES SYSTEMS Case Study PEOPLE PRACTICES SYSTEMS Commercial Building Energy Efficiency Retrofit 4 Mort Street, Canberra In 2010, 4 Mort St, Canberra (Figure 1) was upgraded to significantly improve its energy performance.