Energy Conservation Building Code Regional Experiences Gujarat, Maharashtra, Madhya Pradesh

Size: px
Start display at page:

Download "Energy Conservation Building Code Regional Experiences Gujarat, Maharashtra, Madhya Pradesh"

Transcription

1 Energy Conservation Building Code Regional Experiences Gujarat, Maharashtra, Madhya Pradesh 2 nd Region; Workshop on ECBC Implementation in States March 16, 2017, Ahmedabad Energy Conservation Building Code Implementation : Regional Experience 1/24

2 Energy Conservation Building Code, India ECBC set minimum energy efficiency standards for design and construction It encourage energy efficient design or retrofit of buildings It does not constrain the building function, comfort, health, or the productivity of the occupants Has appropriate regard for economic considerations Energy Conservation Building Code Implementation : Regional Experience 2/24

3 Energy Conservation Building Code, India Adoption Mandatory requirement is to be adopted at SDA or by the ULB or by an agency such as the state PWD. ECBC compliance is included in building bye-laws. Implementation Architects and engineers design the building to meet ECBC requirements Contractors construct and commission the building to meet ECBC Requirements Enforcement The process of checking ECBC requirements in a building Happens at design stage to get construction permit, and after construction to get occupancy certificate Energy Conservation Building Code Implementation : Regional Experience 3/24

4 Energy Conservation Building Code, India Code Enforcement Overview Step 1 must be a compliance check before construction that gives a permit to construct based on drawings and Documentation Step 2 must be a compliance check with on-site inspection that ensures that the building as an asset is code compliant Step 3 may be an optional ongoing check for compliance based on building Energy Performance Index Energy Conservation Building Code Implementation : Regional Experience 4/24

5 STATE CENTRE ECBC Notification Process Town & Country Planning Office (TCPO) Bureau of Energy Efficiency (BEE) 1 2 Model Building Bye laws ECBC Ministry of Urban Development (MoUD) 3 Recommendation to SDAs 4 Recommendation and guidance Gujarat Energy Development Authority (GEDA) Amended ECBC Draft Notification Draft Roadmap 5 Urban Development Department (UDD) 6 Notify ULBs Change GDCR for ECBC 7 Buildin g Byelaws 8 Consulting Members BEE TCPO ULB Civil Society GSERC GSERC Gujarat Urban Development Corporation (GUDC) Department of Energy and Petrochemicals Energy Conservation Building Code Implementation : Regional Experience 5/24

6 Mandatory Requirements Compliance Approaches Applicable BUILDING SYSTEMS COMPLIANCE APPROACHES ENVELOPE HVAC LIGHTING ELEC. POWER SHWP Required for ALL Compliance Approaches Prescriptive Trade-off option (for ENVELOPE only) Whole Building Performance Energy Conservation Building Code Implementation : Regional Experience 6/24

7 Energy Performance Index of Buildings kwh/m Hot-Dry 1-shift Cold 1-shift Warm-Humid - 1-shift Moderate 1-shift Composite 1-shift Hot-Dry 3-shift Cold 3-shift Warm-Humid - 3-shift Range across scenarios Moderate 3-shift Composite 3-shift Average Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 7/24

8 Savings Summary Of Various Energy Conservation Kwh/m 2 Envelope Insulation Windows Comp,Hot-Dry,Warm-Humid Windows Moderate Windows Cold Projections Shading Lighting Controls Lighting Power Density Packaged AC, Air-cooled Packaged AC, Water-cooled Unitary AC Savings compared to BAU Range across scenarios Split AC Chillers, Air-cooled Chillers, Water-cooled Source: TWG-CEPT Study Average Pumps, Motors Energy Conservation Building Code Implementation : Regional Experience 8/24

9 Implementation and Enforcement Approach 1 : Energy Saving The most promising measures for each climate zone in terms of annual energy savings are included in the first Bundle. Thus, ECMs with high energy savings are in Bundle 1, followed by moderate energy savings in Bundle 2 and those with lower energy savings in Bundle 3. This ensures that high energy savings are realized even when the first step- Stepped Bundle 1 is implemented. Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 9/24

10 Approach 1 Hot-Dry and Warm-Humid Climates Bundle 3 Lighting 35-36% Savings 5.6 year payback Bundle 2 Wall and Roof 28-29% Savings 6.0 year payback Bundle 1 Cooling Efficiency 22-25% Savings 7 year payback Window Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 10/24

11 Approach 1 Cold, Moderate and Composite Climates Bundle 3 Lighting Bundle 2 NA 30-36% Savings year payback NA Bundle 1 Cooling Efficiency Window Wall and Roof 18-29% Savings year payback Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 11/24

12 Construction and Permitting Process For majority developer projects Bundle 1 Building structure, walls, roof, finishes Bundle 2 HVAC Bundle 3 Lighting Design Construction Owners / Tenant / Interiors ULB Approval Occupancy Certificate Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 12/24

13 Implementation and Enforcement Approach 2 : Ease of implementation Bundles area arranged with ECBC requirements that align with the current building permitting process Bundle 1 contains measures that can be checked when the building shell is completed and ready for approval given the current construction approval process of most ULBs. Bundle 2 contains measures that could be implemented by the developer/owner with labeling programs as the mode of enforcement. Bundle 3 contains measures that are difficult to enforce with labeling programs or with the current ULB approval process, and may require an independent Third Party Agency. Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 13/24

14 Approach 2 Hot-Dry and Warm-Humid Climates Bundle 3 Lighting 36% Savings 5.6 year payback Bundle 2 Cooling Efficiency 29% Savings 5.9 year payback Bundle 1 Window Wall and Roof 21% Savings 8 year payback Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 14/24

15 Approach 2 Cold, Composite and Moderate Climate Bundle 3 Lighting 30-36% Savings year payback Bundle 2 Cooling Efficiency Bundle 1 Window Wall and Roof 20-29% Savings year payback 13-22% Savings year payback Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 15/24

16 Approach 2 Bundle 3 Lighting Third Party Assessor Verification Bundle 2 Cooling Efficiency Appliance Labeling Program Bundle 1 Window Wall and Roof ULB Approval Source: TWG-CEPT Study Energy Conservation Building Code Implementation : Regional Experience 16/24

17 Enforcement Models Urban Local Body (ULB) Model Third Party Assessment (TPA) Model ECBC Expert Committee (EEC) model Energy Conservation Building Code Implementation : Regional Experience 17/24

18 Energy Conservation Building Code, India Energy Conservation Building Code Implementation : Regional Experience 18/24

19 Local Governme nt ULB Third Party Assessors (TPA) Central Governme nt MoUDc State Governme nt GEDA Projects 6 1 Construction and Occupancy permit Consultation Special Purpose Vehicle (BEE/ EESL/NPC) Accreditation List of violations 11 9 List of violations Payment of fees Penalty Documentation ECBC AP Increased tariff Recommendation letter 12 Utilities 3 Verification 2 8 QA Report TPA (ECBC AP+) Registration Coordination of tariff for non-compliance SERCs Annual audit 7 Empanelment QA bodies (TPA+) Tariff notification Energy Conservation Building Code Implementation : Regional Experience 19/24

20 Energy Conservation Building Code: TPA Increasingly popular mode of code enforcement. Allows easier scale up and scale down of capacity to handle growth Once instituted, it can include Rating Authorities Challenges Requires a certification and qualification for TPAs Examples of Success Adopted in China with good success, 80% compliance reported. In response to issues about municipal-led regulatory enforcement, governments in Canada have used TPAs. Over 90% of the US State of Pennsylvania's 2,562 municipalities have enforced the code locally, using employees or via Certified TPAs Rating systems with TPAs used in Australia (NABERS), USA (HERS) Energy Conservation Building Code Implementation : Regional Experience 20/24

21 Number of Buildings Number of Buildings ECBC: Implementation Challenges and Approach Transformed, new building stock Urban Local Bodies to enforce Scope up to building construction No control over operation of building Limited Capacity BAU Building Stock Tiered approach of implementation Increasing Energy Efficiency ECBC ULB focused Tier 1 Construction permit BAU Building Stock Tier 2 Tier 3 ECBC Compliant Occupancy permit State Designated Agency Third party assessment Utility managed assessment process Increasing Energy Efficiency ECBC Energy Saved by Each Measure of Building Energy Conservation Building Code Implementation : Regional Experience 21/24

22 Challenge: Estimation of energy savings at city level How much energy can be saved Envelop and / or building systems At city or At State level Should code be expanded to / for Smaller commercial buildings Large residential buildings Prioritise enforcement Readiness and benefits to industry Manufacturing Service Industry Prediction of future energy scenario Energy Conservation Building Code Implementation : Regional Experience 22/24

23 Extending work to potential retrofits and Emissions Bundle 3 Lighting Bundle 2 Wall and Roof Bundle 1 Cooling Efficiency Window 35-36% Savings 5.6 year payback 28-29% Savings 6.0 year payback 22-25% Savings 7 year payback 1 KWh/m2-year efficiency in the total existing floor space at Ahmedabad can result in City level cost savings: INR 79.8 crores Avoided CO 2 emission and avoided installed capacity Triple bottom line Energy, Environment, Equity 23/40 Energy Conservation Building Code Implementation : Regional Experience 23/24

24 T H A N K Y O U rajanrawal@cept.ac.in Energy Conservation Building Code Implementation : Regional Experience 24/24

25 Backup Slide Energy Conservation Building Code Implementation : Regional Experience 25/24

26 Local Governme nt ULB Third Party Assessors (TPA) Central Governme nt MoUDc State Governme nt GEDA Projects 6 1 Construction and Occupancy permit Consultation Special Purpose Vehicle (BEE/ EESL/NPC) Accreditation List of violations 11 9 List of violations Payment of fees Penalty Documentation ECBC AP Increased tariff Recommendation letter 12 Utilities 3 Verification 2 8 QA Report TPA (ECBC AP+) Registration Coordination of tariff for non-compliance SERCs Annual audit 7 Empanelment QA bodies (TPA+) Tariff notification Energy Conservation Building Code Implementation : Regional Experience 26/24