India: Best Practise Applications for Hotels

 JP Siddhartha Hotel” Profiting from cost-effective solar thermal technology: The JP Siddhartha Hotel in the city of Gurgaon, Haryana, runs a 56 m2 collector system supplying solar energy for the domestic hot water demand of the hotel. The investment of INR 490,000 will pay off in less than 2 years.
Photo: www.jaypeehotels.com

According to a presentation held by Indian solar thermal system manufacturer Emmvee Solar Systems Pvt Ltd in New Delhi in December 2009, the common payback period for solar systems in Indian hotels ranges between two and three years. The company presentation providing key figures for several installations of solar thermal systems in hotels in India can be found attached to this node.




Hotel Best Western JP Siddhartha Hotel
Location, State Gurgaon, Haryana Gurgaon, Haryana
Number of rooms 400 94
Installation year of the solar thermal system 2008 2008
Generated volume 14,250 litres per day 3,500 litres per day
Collector area
(62 litres per day/m2)
228 m2 56 m2
System Type Thermosiphon Pumped system with boiler backup
Application Hot water supply for bathrooms and kitchen Hot water supply for bathrooms
System Costs 2,775,000 INR 490,000 INR
System Costs 44,312 EUR 7,824 EUR
Specific costs per m2 of collector area 194 EUR / m2 140 EUR / m2
Savings of electricity 775 kWh / day 175 kWh / day
Savings
(5 INR per kWh, with 340 days per year)
1,317,500 INR / year 297,500 INR / year
Payback Period 2.1 years 1.7 years

Key figures for two of Emmvee's solar thermal system installations in hotels. INR stands for Indian Rupees.
Source: Emmvee

The table above shows two cases from the city of Gurgaon: The Best Western Resort Hotel, one of the largest hotel complexes in the Gurgaon NCR region with 400 rooms, and the JP Siddhartha Hotel in the same region with 94 rooms. Originally, these hotels used electricity and a diesel boiler to cover their hot water demand.

Emmvee calculates payback periods by the following formula: electricity savings through the installed solar thermal systems times the average electricity costs of 5 INR/kWh. “The exact pay back time depends on the system costs and the electricity tariff,” Vijay Kumar, Head of Marketing and Sales at Emmvee, explains. “Most hotels choose a 70% room occupancy as the limit for covering hot water demand by solar thermal systems.”

Emmvee Solar was established in 1992 and, all in all, employs 500 people. Its new plant in Bangalore includes a factory for tempering glass, as well as a tank and a collector production unit.

More information:
www.emmveesolar.com


Text was written in cooperation with communication specialist Hanna Schober, based in South Africa. Schober@solrico.com

 

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