Browsing Basic & Applied Sciences by Author "Weerasinghe, WPMCN"
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Forecasting the unit cost of electricity generated by fossil fuel using ARIMA technique: A case study of a diesel/heavy fuel oil power plants in Sri Lanka
Weerasinghe, WPMCN; Jayasundara, DDM (2019)—The national electricity grid system must be kept in balance between sufficient supply to meet the demand and minimization of the cost by alleviating excessive generation. The forecasts made from the historical ... -
Modelling Open Market Retail Price of Red Onions in Colombo using ARIMA-GARCH Mixed Model
Saumyamala, MGA; Weerasinghe, WPMCN; Kumara, JLSM; Sachithra, SAL; Chandrasekara, NV (2019)Red onion is an important commodity in Sri Lankan culture which subject to high frequent fluctuations in retail price due to government policies, trade agreements and weather conditions like heavy rainfall. Objective ...