Annexure 06:ECBC



ANNEXURE -VI

APPLICABILITY OF ODISHA ENERGY CONSERVATION BUILDING CODE (OECBC) - 2011 

1.1 Applicable Building system:

The provisions of OECBC Code, 2011 shall apply to: (a) buildings/ building complexes (such as offices, hotels, shopping complexes, private hospitals and others that are not primarily for industrial i.e. manufacturing use) with Connected load of 100 KW or greater OR a contract demand of 120 KVA or greater OR Conditioned area of 500 m2 or more; (b) building envelopes, except for non-air conditioned storage spaces or warehouses, (c) mechanical systems and equipment, including heating, ventilating and air conditioning, (d) service hot water heating, (e) interior and exterior lighting, and (f) electrical power and motors. 

1.2 Exemptions:

The provisions of this code shall not apply to: (a) Buildings that do not use either electricity or fossil fuel, and (b) Equipment and portions of building systems that use energy primarily for manufacturing processes. 

1.3 Safety, Health and Environmental Codes Take Precedence:

Where this code is found to conflict with safety, health, or environmental codes, the safety, health, or environmental codes shall be take precedence. 

1.4 Reference Standards:

Energy Conservation Building Code, 2007 and National Building Code of India are the primary reference documents/standard for lighting levels, HVAC, comfort levels, natural ventilation, pump and motor efficiencies, transformer efficiencies and any other building materials and system performance criteria. 

1.5 Compliance Requirements: 

1.5.1 Mandatory Requirements:

Compliance with the requirements of OECBC Code, 2011 shall be mandatory for all applicable buildings as specified in Clause (2). 

1.5.2 New Buildings:

New buildings shall comply with either the provisions of Clause (4) through Clause (9) of OECBC Code, 2011 or the whole Building Performance Method of Appendix B (11) of the said code. 

1.5.3 Additions to Existing Buildings:

Where the addition plus the existing building exceeds the conditioned floor area of Clause (2), the additions shall comply with the provisions of Clause-4 through Clause (9) of OECBC Code, 

2011.Compliance may be demonstrated in either of the following ways:

(a) The addition alone shall comply with the applicable requirements, or

(b) The addition, together with the entire existing building, shall comply with the requirements of this code that would apply to the entire building, as if it were a new building. Exception to Clause (3): When space conditioning is provided by existing systems and equipment, the existing systems and equipment need not comply with this code. However, any new equipment installed must comply with specific requirements applicable to that equipment. 

1.5.4 Alterations to Existing Buildings:

Where the existing building exceeds the conditioned floor are threshold in Clause (2), portions of a building and its systems that are being altered shall meet the provisions of Clause (4) through Clause (9) of OECBC Code, 2011.The specific requirements for alterations are described in the following sub-sections Exception to Clause (4): When the entire building complies with all of the provisions of Clause (4) through Clause (9) of OECBC Code, 2011 as if it were a new building. 

1.5.4.1 Building Envelope:

Alterations to the building envelope shall comply with the requirements of Clause (4) of OECBC Code, 2011 or fenestration, insulation, and air leakage applicable to the portions of the building and its systems being altered. Exception to Clause (4.1): The following alterations need not comply with these requirements provided such alterations do not increase the energy usage of the building: (a) Replacement of glass in an existing sash and frame, provided the U-factor and SHGC of the replacement glazing are equal to or lower than the existing glazing. (b) Modifications to roof/ceiling, wall, or floor cavities, which are insulated to full depth with insulation (c) Modifications to walls and floors without cavities and where no new cavities are created. 

1.5.4.2 Heating, Ventilation and air conditioning:

Alterations to building heating, ventilating, and air conditioning equipment or systems shall comply with the requirements of Clause (5) of OECBC Code, 2011 applicable to the portions of the building and its systems being altered. Any new equipment or control devices installed in conjunction with the alteration shall comply with the specific requirements applicable to that equipment or control device. 

1.5.4.3 Service Water Heating:

Alterations to building service water heating equipment or systems shall comply with the requirements of Clause (6) of OECBC Code, 2011 applicable to the portions of the building and its systems being altered. Any new equipment or control devices installed in conjunction with the alteration shall comply with the specific requirements applicable to that equipment or control device. 

1.5.4.4 Lighting:

Alterations to building lighting equipment or systems shall comply with the requirements of Clause (7) of OECBC Code, 2011 applicable to the portions of the building and its systems being altered. New lighting systems, including controls, installed in an existing building and any change of building area type as listed in Table 7.1 shall be considered an alteration. Any new equipment or control devices installed in conjunction with the alteration shall comply with the specific requirements applicable to that equipment or control device.  Exception to Clause (4.4): Alterations that replace less than 50% of the luminaries in a space need not comply with these requirements provided such alterations do not increase the connected lighting load. 

1.5.4.5 Electric Power and Motors:

Alterations to building electric power systems and motor shall comply with the requirements of Clause (8) of OECBC Code, 2011 applicable to the portions of the building and its systems being altered. Any new equipment or control devices installed in conjunction with the alteration shall comply with the specific requirements applicable to that equipment or control device. 

1.5.5 Star Labeling and minimum star rating:

All equipment and materials of type and specification coming under the purview of the star labeling programme as notified by BEE and as amended from time to time shall have minimum star rating as notified by the Government of Odisha or as amended from time to time. Refer to Appendix-K for further details. 

1.5.6 Compliance Approaches:

The building shall comply first with all the mandatory provisions (4.2, 5.2, 6.2, 7.2 and 9) and either of the following:  

(a) Prescriptive Method (4.3, 5.3, 7.3) Exception to 3.2(a): The envelopes trade -off option of 4.4, may be used in place of the prescriptive criteria of 4.3.

(b) Whole Building Performances Method (Appendix B-11) The OECBC compliant buildings in the design stage shall achieve an Energy Performance Index value at least that of a three star level building as specified in Annexure-II (18.3) of Appendix-H (of OECBC code). 

1.6 Administration Requirements:

Administrative requirements relating to permit requirements, enforcement interpretations, claims of exemption, approved calculation methods, and rights of appeal are specified by the authority having jurisdiction. 

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