Green Building refers to a structure that is environment friendly and resource efficient throughout a building’s life cycle starting from design, construction, operation, maintenance, renovation etc.
The office building of Haryana Renewable Energy Development Authority is a Green Building and likely to get Five Star Rating form GRIHA (Green Rating for Integrated Habitat Assessment). It has plinth area of about 55000 sqft at a construction cost of Rs. 1036.00 lacs (i.e 1884 per sqft). The agreement for construction was done in April, 2008 and completed in December, 2012.
The features of this building include

1. Orientation:

The south side is Glazed to have winter Sun. The ACP louver are meant to have
more of direct sun in winter as compared to summers in courtyard. The tapered windows on East & West sides
avoid Sun rays in summer months.

2. Building Elements:

i) Cavity walls on East & West filled with XPS foam (50mm thick having density of 32 Kg/cum, Rs. 740/- sqmt)
ii) Insulated Glass unit (6mm outer Toughened glass + 12mm Air gap + 6mm) for all structural glazing and external windows (U value = 1.8, 49% VT). For interior windows 6mm Sunergy clear (U value 4.1 & 68% VT).
iii) UPVC windows all around of M/s Fenesta.
iv) AAC Blocks (Autoclaved aerated concrete) used on East and West side of Building as well as in entire Boundary wall (Rs. 4057.00/cum).
v) Flyash Bricks used in the Building (Rs. 3275/cum).
vi) Curing compound used for saving water (Curefree from M/s CICO, 35.00/ sqmt)
vii) Low VOC paints used.
viii) Heat resistant Roof insulation tiles over insuplast (Exfoliated Vermiculite) (Rs. 870/sqmt)
ix) Bamboo Flooring
x) Solar Control Clear Polycarbonate Sheet 10 mm thick (M/s SABIC Innovative Plastics)
xi) Water Saving Faucets having flow controller Sink Cock (6 LPM), Single lever sink mixer (6 LPM), Pillar Cock 2.5 LPM, Shower (6 LPM) (M/s Jaquar).
xii) Recirculation of Hot water form Solar water heater.
xiii) Water Proofing Using Crystalline Process.
xiv) Ricron 35.6mm fibre from M/s Reliance in external plaster.
xv) Stainless Steel railing in 304 Grade.
xvi) Sensor Entrance door.
xvii) Semi-unitised structural glazing. Using structural/ whether silicon sealant (M/s Dow Coring)
xviii) Chlorinated PVC pipes (M/s Astral) for water distribution network.
xix) Recycled Cellulose Fibre sheets for Training Hall. (Make ONDULINE)

3. Rain Water Harvesting: During Rainy Season the Rain water will be stored, filtered and used for all purposes including drinking. The capacity of various tanks are:

Main Rain Water Tank – 445 KL
Fire Tank – 55 KL
Raw Water Tank – 9 KL
Treated Water Tank – 10 KL
Over Head Fire Tank – 10 KL
Over Head PVC Tank – 2 KL
Total – 531 KL
The Rain Water is treated using pressure sand filter, activated carbon filter, chlorination etc. Grass pavers have been provided in the Campus and the 100% surface runoff will be harvested through pits in campus drain.

4. Grey Water for Landscaping: Using Drip Irrigation the 100% Grey Water is also treated using aeration, pressure sand filter, activated carbon filter etc. and used for Landscaping.
5. Solar Passive Design: Solar Ducts for natural flow of Hot Air, from Basement upto Terrace.
6. Fire Detection and Fighting System: Addressable System for detection with Automatic Fire, Fighting Pumps (Electric, Diesel, Jockey & Boosting System)
7. Misting System: Cooling through flash evaporation of 14 micron water particles saves lot of energy. 3 pumps of 10 LPM capacity (M/s Coolline, USA) Nozzles of 0.008” orifice with Antidrip system includes ultraviolet filters & 1 micron filter.
8. VRV System
9. Sensor Lighting
10.Solar Photovoltic Cells for Generating Electricity from Sun. Excess Electricity will be stored in the Battery Bank.