RWANDA GREEN GROWTH WEEK SUSTAINABLE BUILT ENVIRONMENT By Eng. - - PowerPoint PPT Presentation

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RWANDA GREEN GROWTH WEEK SUSTAINABLE BUILT ENVIRONMENT By Eng. - - PowerPoint PPT Presentation

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GREEN BUILDINGS AND GREEN CITIES RWANDA GREEN GROWTH WEEK SUSTAINABLE BUILT ENVIRONMENT By Eng. Harouna/BRIA-DM December 8, 2017 Content of the Presentation PART ONE: GREEN BUILDINGS -What is a green building? -Why Green buildings?

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GREEN BUILDINGS AND GREEN CITIES

RWANDA GREEN GROWTH WEEK

SUSTAINABLE BUILT ENVIRONMENT

By Eng. Harouna/BRIA-DM

December 8, 2017

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Content of the Presentation

 PART ONE: GREEN BUILDINGS

  • What is a green building?
  • Why Green buildings?
  • Green building in Rwandan context
  • Difference between Min. Compliance & Rating System?
  • Minimum compliance indicators

 PART TWO: GREEN CITIES

  • Definition of a Green City
  • Indicators of a green city
  • Illustrations of elements of a green city
  • Illustration of problems if we don’t go green
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PART ONE GREEN BUILDING

Is it a green colored building?

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What is a green building?

 Is it a green coloured building?  Is it a green house?  Is it the one covered by grass?

  • Globally ‘green’ refers to – Pursuit of

an activity that has positive impact on the environment, leading to sustainable development. Hence the term ‘green building’

*Images are for representation purpose only

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Why Green buildings?

 Increasing Urbanization from18% to 35% (Vision 2020)

  • 75% of building stock yet to be built (UN-Habitat)

 Increased resource consumption

  • Energy, Water, Materials

 Increasing CO2 emissions from building sector  Policy context

  • National Green Growth and Climate Resilient Strategy 2011
  • GoR & GGGI National Roadmap for Green Secondary City Development 2015
  • Rwanda Building Code 2015
  • NST1

*Images are for representation purpose only

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Green building in Rwandan context

can be defined as the one which:

 Optimize use of developable land (Densification)  Take advantage of the comfortable ambient weather (Upland

climate)

 Maximize use of sustainable & locally manufactured building

materials (Made in Rwanda & Rwandan Character)

 Reduce Energy & Water consumption  Provide superior Indoor Environmental Quality for occupants  Protect environment and promote biodiversity . . .

*Images are for representation purpose only

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  • Min. Compliance vs Rating System?
  • Min. Compliance System

Rating System Mandatory Standard Voluntary Standard Enforced by Govt. Agencies Promoted by Non-government organizations/ Industry Associations Example: Building Construction Authority, Singapore Example: LEED promoted by US Green Building Council, Indian Green Building Council (IGBC), Green Star in Australia/South Africa, EDGE by International Finance Corporation, DGNB in Germany, BREEAM in UK etc. Ensures a degree of sustainability in majority of buildings Choice of the building owner to pursue. Although few Govts. provide incentives to encourage adoption Simple and easy to understand Challenging features with a need to involve specialized

  • professionals. For Example: Energy Modelling, Daylighting

simulation etc. Building Permit Rating Certificate awarded to projects. For example: Platinum, Gold, Gold Plus, Silver, Certified; 6 star, 5 star, 4 star;

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The Five Modules

 Energy Efficiency  Water Efficiency  Environmental Protection  Indoor Quality  Other Green Features

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Proposed Applicability

 All new Category 3 & 4 buildings comprising of

 Commercial Buildings  Public administrative and institutional buildings  Social, cultural and assembly buildings  Health facilities  Educational buildings

*Images are for representation purpose only

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Features of min. green building compliance

Modules Indicators Points available

  • Min. Compliance

achieved

Design + On-site Verification to ensure compliance

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Legal basis for Green Building Min. Compliance

 Few Prerequisites addressing National Priorities  Non-negotiable and every building has to comply  Indicators aligned with National policies  For Ex: Locally manufactured materials, Densification etc.  Easier enforcement of building code  For Ex: Noise limits  Optional Indicators (Limited in each module). Ex:  Innovation  Reuse of treated wastewater  Use of off-grid energy/Solar panels

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Module 1: Energy Efficiency

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Module 1: Energy Efficiency

S.No. Indicator 1.1 Building Envelope: Air-conditioned Space 1.2 Building Envelope: Non Air-conditioned space 1.3 Thermal Transmittance (U- Value) for roof 1.4 Air Conditioning System 1.5 Natural Ventilation 1.6 Daylighting 1.7 Lighting Efficiency 1.8 Ventilation in Carparks 1.9 Ventilation in Common Areas 1.10 Lifts and Escalators 1.11 Energy Efficient Practices 1.12 Renewable Energy 1.13 Solar Hot Water Systems 1.14 Energy Metering

*Images are for representation purpose only

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Module 2: Water efficiency

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Module 2: Water Efficiency

S.No. Indicator 2.1 Efficient Plumbing Fixtures 2.2 Rainwater Harvesting 2.3 Waste water Treatment 2.4 Treated waste water reuse 2.5 Water Metering

*Images are for representation purpose only

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Module 3: Environmental Protection

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Module 3: Environmental Protection

S.No. Indicator 3.1 Sustainable Construction & Materials 3.2 Greenery Provision 3.3 Environmental Management Practices 3.4 Refrigerants 3.5 Segregation of Waste, Post-occupancy 3.6 Construction Waste Management 3.7 Heat Island Reduction 3.8 Soil Erosion & Sedimentation Control

*Images are for representation purpose only

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Source: LBNL Heat Island Group

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Module 4: Indoor Environmental Quality

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Module 4: Indoor Environment Quality

S.No. Indicator 4.1 Minimum Fresh Air Ventilation - Mechanically ventilated spaces 4.2 Thermal Comfort - Mechanically ventilated spaces 4.3 Noise Level 4.4 Low VOC Paints & Adhesives

*Images are for representation purpose only

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MODULE 5: INNOVATION AND OTHER GREEN FEATURES

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Module 5: innovation and Other Green Features

S.No. Indicator 5.1 Innovation 5.2 Optimum Use of Developable Land 5.3 Universally Accessible Building

*Images are for representation purpose only

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Way Forward

 Technical committee meetings  Finalize requirements, tools, scores etc.  Enforcement Procedures to be finalized  Validation  Integration in BPMIS  Capacity building of stakeholders

Proposed Timeline

 Validation – Expected period 3rd & 4th Quarter of F.Y. 2017-18  Adoption & Enforcement – End of F.Y. 2017-18

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PART TWO GREEN CITIES

Does a set of green buildings make a green city?

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Definition of a Green City

 “Green cities have clean air and water and pleasant streets and

  • parks. Green cities are resilient in the face of natural disasters,

and the risk of major infectious disease outbreaks in such cities is

  • low. Green cities also encourage green behavior, such as the use
  • f public transit, and their ecological impact is relatively small”

(Kahn, 2006);

 SDG Goal 11: Make cities and human settlements inclusive, safe,

resilient and sustainable

 National Urbanization Policy: Densification and Conviviality Pillars

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Indicators of a Green City

Green City Indicators

 Eco-vision of the city  Compact City Planning /

Densification

 % Affordable Housing units  % Green Buildings  Urban Heat Island Mitigation  % Employment Opportunities

and employability

Green City Indicators

 Solid Waste Management  Waste water treatment &

reuse

 Protection of eco-

sensitive zones

 % Public Green and open

spaces, Accessibility

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Indicators of a Green City

Green City Indicators

 Resource efficient

city

 Integrated Utility

Network

 ICT  Sustainable Mobility Public Transport,

Pedestrian, Bicycle Green City Indicators

 Universally Accessible

city

 Air Quality  Innovation  Responsible

consumption and Lifestyle

 Gender and

Inclusiveness

 Climate & disaster

resilience

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Illustrations

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Illustrations

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Illustrations

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Problems illustration

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Illustrations

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Problems illustration

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Problems illustration

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Problems illustration

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Problems illustration

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Problems illustration

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Problems illustration

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Problems illustration

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Problems illustration

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Problems illustration

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Problems illustration

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Thank you!

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References

  • 1. Rwanda Minimum Compliance Green Building Indicators-

Draft

  • 2. Indicators for sustainable cities-European Commission,

November 2016

  • 3. How green is a “Green City”? A review of existing

indicators and approaches: Institute for Advanced Sustainability Studies (IASS) Potsdam, December 2016

  • 4. Rwanda Building Code
  • 5. Urban Planning Code
  • 6. Rwanda Green City Toolkit, 2017
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Email your inputs and comments:

Harouna: harouna.nshimiyimana@rha.gov.rw Dheeraj: arrabothu.dheeraj@gggi.org Yves: ysangwa@gmail.com Farizan: farizan@greenaconsultants.com