Payback period of up to 1 year for HC retrofits and 2 years for new HC equipment
In the workshop, the presenters listed typical energy conservation measures and outlined specific steps which could be undertaken to realise a 'payback' period for putting the improvements in place. With air conditioning accounting for about 64% of energy used by small hotels, one of the recommendations concerned this type of equipment. More specifically, the energy specialists recommend retrofitting air conditioners as well as refrigeration equipment with hydrocarbon refrigerant. For the case of new equipment the experts also recommend installing new systems manufactured to use hydrocarbon refrigerants. By doing so while making sure that all safety concerns are addressed, including employing technicians qualified to work with hydrocarbons, hoteliers may expect energy savings in terms of a payback period from 0.5 to 1.0 year for retrofits, and an average of 2.0 years for new equipment.
According to the experts, additional benefits from the use of hydrocarbons include:
- Less maintenance
- Extended equipment life
- Environmentally friendly refrigerant, with no ozone depletion and negligible global warming potential
- Inefficient lights replacement: Payback period from 0.3 to 2 years, with an average of 1.1 year
- Install power factor correction units: Payback period from 0.8 to 2.5 years, with an average of 1.5 year
- Install timer on swimming pool pump motor: Payback period from 0.5 to 1.5 year, with an average of 0.8 year.
- Install water to refrigerant heat exchanger on cooling systems: Payback period from 0.8 to 2 years, with an average of 1.2 year
- Install diesel generators heat exchangers to heat water (cogeneration): Payback period from 0.8 to 3 years, with an average of 2.5 year
- Install solar water heaters: Payback period from 1.5 to 5.5 years, with an average of 4 years
- Install high energy efficiency ratio (EER) cooling systems: Payback period from
Looking ahead: more audit results expected
"BHA is awaiting the results of 18 additional hotel audits throughout the country which were conducted last year and this January and February as part of a program BHA has supported which is being undertaken by the Government of the Bahamas in cooperation with the IDB. It is believed that the results will mirror those of the ones just completed and will provide additional information on how energy is used and efficiencies can be realised by hotels in different size and location categories" said BHA Executive Vice President Frank Comito.