GREEN BUILDINGS AND GREEN CITIES RWANDA GREEN GROWTH WEEK SUSTAINABLE BUILT ENVIRONMENT

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? -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

PART ONE GREEN BUILDING Is it a green colored building?

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

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 CO 2 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

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

Min. Compliance vs Rating System? Min. Compliance System Mandatory Standard Enforced by Govt. Agencies Example: Building Construction Authority, Singapore Voluntary Standard Rating System Promoted by Non-government organizations/ Industry Associations 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;

The Five Modules Energy Efficiency Water Efficiency Environmental Protection Indoor Quality Other Green Features

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

Features of min. green building compliance Modules Indicators Points available Min. Compliance achieved Design + On-site Verification to ensure compliance

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

Module 1: Energy Efficiency

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

Module 2: Water efficiency

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

Module 3: Environmental Protection

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

Source: LBNL Heat Island Group

Module 4: Indoor Environmental Quality

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

MODULE 5: INNOVATION AND OTHER GREEN FEATURES

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

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 3 rd & 4 th Quarter of F.Y. 2017-18 Adoption & Enforcement End of F.Y. 2017-18

PART TWO GREEN CITIES Does a set of green buildings make a green city?

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 of 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

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 ecosensitive zones % Public Green and open spaces, Accessibility

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

Illustrations

Problems illustration

Illustrations

Problems illustration

Thank you!

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

Email your inputs and comments: Harouna: harouna.nshimiyimana@rha.gov.rw Dheeraj: arrabothu.dheeraj@gggi.org Yves: ysangwa@gmail.com Farizan: farizan@greenaconsultants.com