Identifying the barriers and drivers to the uptake of WSD in South - - PowerPoint PPT Presentation

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Identifying the barriers and drivers to the uptake of WSD in South - - PowerPoint PPT Presentation

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Identifying the barriers and drivers to the uptake of WSD in South Africa David Ellis WRC K5/2412 and K5/2413 Second Reference Group Meeting 11 th November 2015 www.wsud.co.za Urban Water Management 2 Background On going academic

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Urban Water Management

Identifying the barriers and drivers to the uptake of WSD in South Africa

David Ellis WRC K5/2412 and K5/2413 Second Reference Group Meeting 11th November 2015

www.wsud.co.za

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Urban Water Management

Background

  • On going academic research in WSUD (or similar).
  • Concurrent activity in the public and private spheres

with many projects implemented.

  • However, what has been done, why and to what

effect remains largely unpublished in RSA.

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Objectives & Method Summary

  • Establish a scoping process to benchmark WSD practice
  • Prioritise +/- 20 exemplars for review as case studies;
  • Identify the drivers and barriers to WSD uptake through

the consultation of project professionals ;

  • Synthesise lessons learnt from each case study; and
  • Distribute information through the WSD project database;

facilitating transfer of knowledge to a greater audience.

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WSD Project Database

  • Distribute all information in public database via the

WSUD website (www.wsud.co.za)

  • Database aims to benefit a variety of interested parties.
  • Different levels of information for different audiences.

1 2 3

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What is Happening?

20 40 60 80 100 120 140 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016

  • No. of Projects

GBCSA Register Project Register

31% of new or redeveloped buildings considered green in 2012 (McGraw-Hill, 2013). Opportunity missed?

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What is happening?

Popularity of BMP categories in ‘Green’ projects

0% 10% 20% 30% 40% 50% 60% 70% % of captured projects

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Looking Deeper

Popularity of alternative supply subtypes in ‘Green’ projects

0% 5% 10% 15% 20% 25% 30% % of captured projects

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Why: GBCSA Driver

20 40 60 80 100 120 140 2008 2009 2010 2011 2012 2013 2014 2015

  • No. of Certifications

Year All Tools Office EBP Interiors MUR PEB Retail

74% of green buildings certified by GBCSA, 2012 – 2013 (McGraw-Hill, 2013).

WHY?

  • Doing the right thing;
  • Lower operating cost for tenant;
  • Better working environments for tenants (more

productive)

  • Higher ROI for developer, etc.
  • Marketing potential.
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Why: GBCSA Driver – Benefits

  • Well documented process.
  • Benefits from informed ESD consultants.
  • Better ‘fit for purpose’ application of alt. supplies;
  • Well guided SuDS implementation, etc.
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Why: GBCSA Driver – Limitation

20 40 60 80 100 120 140 2008 2009 2010 2011 2012 2013 2014 2015

  • No. of Certifications

Year All Tools Office EBP Interiors MUR PEB Retail

But there is room for improvement:

  • Poor representation of water, especially SW;
  • Poor correlation between design and as-built ratings (30%);
  • Does not cross sectors well;
  • Calculators taken too literally, masks true benefit;
  • No post-implementation monitoring;
  • Limited maintenance planning requirements; and
  • Costly.
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Why: Disclosure Drivers

Some disclosure mechanisms:

  • 2000: The Communication on Progress (COP) – UN

Global Compact (75 participants in RSA)

  • 2000: Global Reporting Initiative (GRI)
  • 2004: Carbon Disclosure Project (CDP)
  • 2004: JSE Socially Responsible Investment (SRI) Index

(Local)

Woolworths Distribution Centre (Centurion) – Alternative supplies

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Why: Disclosure Drivers

G4- EN22: “therefore we do not feel it is necessary to monitor wastewater discharges by quality or destination.”

  • Sweeping statement in RSA context.
  • Where is stormwater?
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Why: Legislation / Approval Driver

  • Space constraints;
  • Physical constraints (difficult levels);
  • Sensitive Environments;
  • Infrastructure constraints;
  • Service level restrictions; etc.
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Why: Legislation / Approval Driver

The Falls PnP – Stormwater and Town planning by-laws – space constraint ICBD – Stormwater impacts policy – space and level constraints

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Why: Legislation / Approval Driver

Ridgeside – Stormwater / environmental approvals – sensitive environment and infrastructure Cotswold Downs –– Environmental approvals – sensitive environment and restricted services

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But to what effect?

Almost every case study had a BMP that was not functioning correctly.

  • Lack of WSD guidance in planning and design.
  • Poor operation and maintenance due to uninformed
  • r non-existing facilities managers.
  • So there is the Good, the Bad and the Ugly.
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The Good

10 20 30 40 50 14-Aug 22-Nov 02-Mar 10-Jun 18-Sep 27-Dec 06-Apr Water demand (kl) Municipal Supply RWH Total Demand

40% less potable water used

Lebone II – Rustenburg Group 5 HQ – JHB MyCiti Bus Depot – CPT

85% saved

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The bad and the ugly

Woolworth DC – TSH Lebone II – Rustenburg Bishops Court – ETH DPW – Ixopo Woolworth DC – TSH Pick n pay DC – CPT

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Conclusions

  • The time is now.
  • GBCSA and disclosure mechanisms are important

players in RSA;

  • But ratings and disclosures are not holistic enough;

and

  • Legislation and approval mechanisms need greater

design guidance, maintenance planning and monitoring requirements.

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Thank you

To add to the debate / give your views go to www.wsud.co.za

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Method: Scoping Process

  • Capture developments in WSD

projects register by seeking input from practitioners

  • Priorities identified developments

for review as case studies:

  • Research Opportunity (How productive.)
  • Strategic Value (How unique.)
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And Deeper

Popularity of end uses by different alternative supply subtypes

0% 20% 40% 60% 80% 100% Rainwater harvesting Stormwater harvesting Greywater recycling Blackwater recycling Groundwater use WWTP effluent use Surface abstraction Other Landscape irrigation Car/Motor washing Toilet flushing HVAC fluid Potable water Recreation Unspecified

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Disclosure Drivers: Woolworths DC

Aim Target reduction 2014 Achieved 2015 Water use across stores per square metre 50% 41.35% Water use at head office 70% 55% Water usage per DU at DC’s Target 0.00092 kl per DU Achieved 0.00079 kl per DU

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GBCSA Driver – Benefits

  • Well documented process.
  • Benefits from informed ESD consultants.

0% 20% 40% 60% 80% 100% RWH SWH GWR RWH SWH GWR Non-Certified Certified Landscape irrigation Car/Motor washing Toilet flushing Potable water Recreation Unspecified