India's 1st net energy plus building

CSERC building, Raipur, Chhattisgarh, India

11.08.2012, location: Raipur, Bhubaneswar. -- REPORT ON THE ARCHITECTURAL DESIGN OF OFFICE BUILDING OF CHHATTISGARH SATE ELECTRICITY REGULATORY COMMISSION AT RAIPUR. CG. INDIA.

1.ABOUT THE SITE

The location of site is at Indravati colony in the heart of capital city Raipur, capital city of Chhattisgarh state , INDIA. The site is located at a distance of about 100 mts from GE Road. The site primarily was allotted having an area of 40mt x 60 mt . The site is abounded by 2 side roads� , school & residential quarters . While possession was given, the site was having one deep bore well dedicated for colony water supply including few nos of� trees.

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2.INITIAL INFRASTRUCTURE

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Chhattisgarh Housing Board ( CGHB ) has constructed the office building & THE DESIGN GROUP, BHUBANESWAR as the consultant. In the 1^st phase, CGHB was asked to do the boundary wall, drain around the site including initial site development. Soil test is also conducted by CGHB for purpose of structural design.

3. ABOUT THE DESIGN

3.A. FLOOR LAY OUT

The building is conceived of total 3 nos floors to accommodate the total requirement. Separate entries / exits are created at NW side of the site. Parking facility is created for 25 nos of 4 wheelers & about 50 nos of 2 wheelers. Front & corner landscape is kept in design including security sheds near the gate. Provisions for dedicated bore well, transformer are to be located inside the plot . The building have drive ways around it & one pass through drive way in the middle. The pass through drive way will form itself to a porch dividing the structure in to two parts. This drive way will primarily be used for visitors & staff of office. The left wing of this porch will accommodate court room, conference, lobby , toilets, maintenance, stairs, lfts , staff recreation & other allied services etc. & in right wing library, records, office space etc are created. Another entry at North East face of building is created with a porch & �separate staircase for members & directors of CSERC. The area of� Ground floor is 659 sqmt

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The 1^st floor of the building is planned to accommodate chairman’s chamber attached with one mini conference room, members & other director’s chambers, office space for staff , toilets, lobby, pantry etc.

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In 2^nd floor, accommodates CREDA head office.

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The area of 1^st floor & 2^nd floor are 687 sqmt & 726.5 sqmt respectively.

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Cost of Internal partitions, false ceiling etc is included with cost of total building, landscape etc in the 1^st phase construction. Specific provisions for physically handicapped personnel are kept in the building design. In the 2^nd phase roof top rain water harvesting, solar PV integration & evaporative cooling system were done.

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3.B. PILOT PROJECT ON CDM BUILDING TECHNOLOGY

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This has been dreamed to project this as 1^st CDM building in Govt sector in� INDIA. Initially it was thought to have only one energy efficient building. Later on the design was framed to have one Net zero energy, zero water building. Finaly the building became net energy plus.

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Needless to mention that our state enjoys maximum no of SUNDAYs annually. Keeping this in the view, the orientation & volume of the building was conceived by formulating VOC analysis. As the orientation of building was critically analyzed , it stood across the direction of approach axis vis a vis south west & west umbrella of building which judiciously was created to protect the structure from horizontal� solar beams. Besides the umbrella holds the PV dome on top to shade the roof. Ferro cement baffles are also given in the critical areas of façade to hinder un wanted conductive & transmitted heat gain. Air conditioned & non air conditioned spaces are distributed effectively so as to rationalize the heat gains for energy efficiency. Evaporative duct able cooling facility for cooling non AC spaces is to be executed in the 2^nd phase. Wall , roof & glazing insulation has been proposed in the design. Internal sensitive fibers are carefully shaded to reduce heat gains. In the 2^nd phase PV integration is made on the roof top truss to support load of 52 Kwt. Additional Roof top PV integration up to another 25 Kwt has been made in subsequent phases.

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The office space is designed to be day lit with effective use of day light. Openings of appropriate size & position are given to rationalize day light & transmitive heat gain. Care has been taken to switch off artificial lights in maximum day office hours as in our state sky conditions remain clear in about 200 + days. In day time over cast sky condition & post evening working hours artificial illumination are required. Maximum Internal illumination load comes about �4 Kwt against total maximum connected load of�� 100 Kwt & demand load of 125 Kwt.

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The building design reduces cumulative energy expenditure to the tune of about 45% with respect to any� general office building in summer & about 15% in winter & strategically designed confirming relevant principles of Solar passive technology . The green power harvesting from PV interactive system will be projected for CERs� right from day1. Grid interactive system is installed for PPA.

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4. ABOUT THE ARCHITECTS

The complete exercise of planning , designing the building of CSERC has been made by Ar Mr Tara Prasad Dhal, CEO of The Design Group, Bhubaneswar with able support from S K Shukla, Director, CREDA to evolve one crucial solution on the maiden CDM building in India. Previously the same team have worked together for design of Rajiv Gandhi Urga Udyan ( Energy Park) at VIP road , Raipur. Architect has also designed sainik school , Ambikapur and Police Commissioner ate building at Bhubaneswar in the principle of Solar building Technology. Sri Dhal who is also member of� ISES &� WJC foundation on climate initiative.