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|Chembur, India | OSM
|65.4 kWh/m2/year (primary energy)
BPCL Chembur is a residential tower located in Maharashtra in a hot and humid climatic zone (as per bigEE climate classification). The building is owned by Bharat Petroleum Corporation limited, a public sector company. The building consists of 42 dwelling units. The building has been de-signed by CNA Architects, Mumbai. The construction of the building was completed in 2014. The building is a certified green building under the GRIHA green building rating system. The building has achieved a 4 star rating.
The annual energy consumption of the building has been simulated in visdoe and the total ener-gy consumption of the building accounts to 4,55,869 units. Energy performance index of the building is 56.98kWh/m2/year.
The total cost of the project is 2,590,000 Euro, out of which the building envelope cost accounts for 1,890,000 Euro and the technical installation cost is 700,000 EUR.
|Year of completion
|Number of units
|Number of occupants
The building is designed as a high rise building with 42 dwelling units. Each apartment consists of bedrooms, living, kitchen, balconies, guest bedrooms etc. The approximate area per apartment is 120 square meter.
The external wall assembly comprises of AAC (autoclaved aerated concrete blocks) which have higher thermal resistance values as compared to the conventional brick wall. The external roof of the building comprises of RCC (Reinforced Cement Concrete) with water proofing treatment. The Aluminium frame with aluminium sliding windows has been provided in the building. The single glazed 6 mm thickness glass with low SHGC value has been used in the building. The SHGC of the glass is 0.42 with a tinted coating which helps in reducing the heat gains in the building.
|Type of construction
|No thermal bridging
|No special attention to air tightness
|Fixed external shading elements
|Thermal conductivity λ
|Thermal conductivity λ
|Solar heat gain coefficient
|U-value window frame
The building is a residential complex located in Mumbai. No centralized cooling and heating sys-tem has been planned in the design phase. The installation of the cooling system in the apart-ments is based on the choice of the apartment owners.
|Indoor design temperature summer
|Indoor design temperature winter
No heating system has been installed in the building, as there is no requirement of heating.
The split air conditioners have been installed in most of the apartments of the building, which are mostly BEE 1 star or 3 star rated.
There is no hot water system considered in the design phase, however the apartment owners have installed the electrical geysers as per their needs.
The building spaces are naturally ventilated, comprising of ceiling fans in the rooms.
A 16kWp rooftop solar photovoltaic system has been installed in the building for generation of electricity. The annual generation from this is 22960 kWh. Almost 20% of the total internal lighting load is fed by the PV system.
Detailed information on installed power generators not known.
The artificial lighting system of the building comprises of tubular fluorescent lamp and LED fixtures.
The annual energy consumption is 455,869 kWh. Out of which 432,909 units are consumed from grid supply and rest are generated from solar photovoltaic system installed on the roof top.
|Primary energy consumption
|Primary energy consumption (ref. building)
|Specific primary energy consumption
|Specific primary energy consumption (ref. building)
The total cost of the project is 2,590,000 Euro, out of which the building envelope cost accounts for 1,890,000 Euro and the technical installation cost is 700,000 Euro.
*Lifetime of building envelope and systems has bee assumed as 50 years and 20 years respectively.
|Total investment costs
|Yearly energy costs