Volume : 2, Issue : 8, August - 2013

Green Gross Regional Domestic Product of Hotels in the City of Medan Based on Dynamics System and Sustainable Water Resource Conservation

Sukardi, Abdul Rahim Matondang, Retno Widhiastuti

Abstract :

Gross Regional Domestic Product (GRDP) of hotel sector in Medan continues to increase, but it does not describe the actual condition because the external factors have not been taken into account. This study was intended to determine the cost of externalities as a correction for GRDP to convert into Green GRDP of the hotel sector in the city of Medan. The study used a dynamic analysis using Powersim software of 2005 version. Respondents in this study were managers of star and non–star hotels in Medan. Hotel samples were selected through a stratified sampling method, accounting for 74 hotels. The study results showed that most hotels (81.52%) use groundwater as a water source for the hotels. In addition, none of the hotels in Medan carry out waste management; they still use government services to transport waste to the final disposal. The size of green open space owned by each hotel does not meet the needs that should be available for the hotel. Based on the results of dynamic simulation model made to calculate the green GRDP, the star and non–star hotels have a difference of 1.17 to 3.09% compared to the actual calculation. The resulted test of validity for the dynamic simulation model that has been designed showed that the model is valid and can be used to estimate the value of green GRDP. The correction factor rate for the conventional GDP into green GRDP is 4.75% for the hotel sector in Medan if only the cost of negative externalities (waste water treatment, waste treatment and green space management) is taking into account; while if the cost of both negative and positive externalities (efficient cost of electricity) in the hotel sector in, it is 2.82%. The study result also indicated that the use of large volume of ground water by the hotels and the low cost of retribution or taxes can be an inhibiting factor for the conservation of water resources in the city of Medan