Environmentally Responsible Development

Oct 2016 , by , in Design

Environmentally Responsible Development

Case Study: AparnaSarovar Grande

 

Aparna Constructions is a leading real estate developer in Hyderabad. They wanted to develop a project that combines modern architecture and sustainability as also complying with global standards of construction. Conserve, a global consulting firm offering design, development and maintenance advisory services for sustainable and high-performance buildings provided the solutions.

Developing luxury projects without compromising with sustainability, remains a major challenge both at development and operations stage. This project implemented various energy conservation measures (ECMs)  such as efficient roofing assembly and glass assembly to reduce the heat ingress into the building, the use of efficient light fixtures in the common areas and parking areas that helped achieve more than 30% LPD reduction over baseline. Other energy saving measures included BEE 4-star rated pumps, BEE 4-star rated motors, group controls in lifts and 1200 KVAR capacitor bank to improve power factor automatic water flow controller.

aparna_gate

To monitor and control the project performance various metering systems are installed. The project has installed energy meter for external lighting, municipal water pumping and Grey water pumping for flushing. In addition, the energy generation from the renewable energy systems contributed to the energy requirements of the complex. of the project. The installed solar PV system (140 kWh) caters to 2.5% of the net connected load (5565 kWh).

AparnaSarovar Grande is designed such that at least 80% of the regularly occupied spaces in each dwelling unit have access to the outdoor environment in at least two orientations. Almost 75% of the spaces achieve the minimum luminance level of 108 lux in all of the regularly occupied areas.

aparnasarovar

The project has used rapidly renewable materials to minimize the usage of raw virgin wood. More than 75% rapidly renewable wood has been used in all the wood based materials in the project.The salvaged materials include used teak wood, china mosaic tiles, brick bat coba and salvaged steel that contribute to 1% of the total materials cost. Project has also diverted more than 95% of the construction waste generated on site through reusing or selling the recyclable materials to venders.

This 720 apartment project spread across 1.5 million sq.ftarea with nine iconic towers has received the Green Homes Platinum Certification from IGBC.This sustainable project has created new benchmarks for luxury housings projects and proved that “luxury and sustainability” can go hand in hand with optimization of natural resources.

To minimize the environmental impacts and carbon emissions due to transportation, more than 79% material was sourced from within 400 km of construction site. The local materials sourced include cement, steel, glass, aluminum, tiles, bricks, sand and aggregate.This project has also used materials with more than 20 % recycled content of the total project cost. Bricks with fly ash, steel, PPC cement, window frames, Glass, tiles etc. are used under this category.

To reach the exemplary performance in water-efficiency,  water use reduction of 50% over IGBC baseline was attempted. Project has used low flow flush fixtures having flow rates of 3/6 and has installed low flow fixtures that include kitchen sink, faucet (pillar/bib/Health) with 4 LPM flow rates and showerhead/ hand-held spray with 6 LPM flow rates. The project team has achieved water saving of 50.4% over the baselines.Various water efficient measures, mechanisms of rainwater harvesting has been installed which includes 2* 255cu.m storage tanks and 33 percolation pits (3cu.m/day) around the periphery of the site.

Waste management is a major challenge in the housing projects. To address this, provisions were made for 100% water recycling and 100% waste recycling. A sewage treatment plant having a capacity of 485 KLD was installed to treat 100% of the waste water generated on-site. While, the estimated waste generated was 900kg, the capacity of the installed ‘Organic Waste Composter’ was kept as 1000kg.To monitor and control the project performance, water meters were installed for landscape water consumption, treated grey water consumption and domestic water consumption.

Performance Successes

AparnaSarovar Grande is Aparna’s first “IGBC Green Homes” project and Platinum Rating Certification was attained in their very first attempt. It has also achieved the feat of being the first Platinum rated multi dwelling apartment under IGBC Green Homes v2.0 in Hyderabad and Telangana.Miscellaneous sustainable features were built in the project to achieve high performance and consume fewer resources. The project performance pertinent to water efficiency has been taken to a higher level with 18 out of 18 points. It also achieved 7 out of 10 points on overall energy performance with respect to IGBC Benchmark.

 

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