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Green Building Council of Namibia Glenn Howard – Emcon Consulting Engineers.

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Presentation on theme: "Green Building Council of Namibia Glenn Howard – Emcon Consulting Engineers."— Presentation transcript:

1 Green Building Council of Namibia Glenn Howard – Emcon Consulting Engineers

2  The case for energy management in buildings ◦ Why? ◦ How much?  Do we use?  Can we save? ◦ Where can we save? ◦ What is the process?

3  Sustainability ◦ Reduce greenhouse gas emissions ◦ Reduce consumption of finite energy resources ◦ Migrate to infinite energy resources  Green Star Rating ◦ Demonstrate commitment to sustainability ◦ Provides a rigorous methodology  Business case? ◦ Is there a business case? ◦ If so, we have a winner that gets the horse (building owner) to drink from the eternal river

4  Existing Building Performance (Pilot)  “Energy” category points = 27% of rating: ◦ Energy reduction – related to GHG emissions (25 points) ◦ Peak electricity demand reduction (2 points)  Add “Building Management” and “Water”  = 44%

5 1% New build & refurb 99 % Existing Buildings 99 % Existing Buildings

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8 N$1.95M/annum N$470k/annum N$2.7M/annum

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11  Energy source (electrical, gas, diesel, paraffin, solar, wood)  Air conditioning (HVAC) and refrigeration  Lighting ◦ Efficiency (luminaire and lamp) ◦ Control ◦ Daylight ◦ Illumination levels  Water heating  Appliances ◦ Industrial engineering ◦ Energy rating (TCO – LCC)  Elevators & escalators  Computer energy saving modes  Power factor correction  Renewable energy  MAINTENANCE (Scheduled maintenance)  Etc.

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14  When? ◦ New building – get it right first time ◦ Existing building – any time or at trigger points:  sale of the property  change in the lease  replacement of equipment  refinancing, remodelling, renovation or rehabilitation

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16  Goals ◦ Lowest cost of energy ◦ Efficient energy use ◦ Use most appropriate technology  Ultimate goal ◦ Sustainability ◦ Zero net energy (ZNE) buildings

17  Systematic assessment of energy use ◦ Sources ◦ Where it is used ◦ Variance between input and useage ◦ Effectiveness and efficiency

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20  Broad organisational awareness  Monitor and measure  Energy management plan – short & long term  Integrated into organisation management structure  Provide leadership (Champion) and a team  Top-down commitment expressed as policy

21 Energy is a manageable expense You can’t manage what you don’t measure (and report on) Thank you


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