Ingenieur Vol. 75 ingenieur July 2018-FA | Page 17

Figure 4: Typical powerhouse for small hydro scheme utility substations. Some are facing problems due to lack of fuel feedstock, while others have technology issues involving the boiler and/or the fuel processing/treatment system, all of which significantly reduce output. Municipal Solid Waste (MSW) Systems There have not been any success stories so far in generating power from MSW in Malaysia, mainly due to the low tariff rate when selling electricity to the utility and the low tipping fee for sending the MSW to the landfill. The only plant commissioned a few years ago in Kajang ground to halt a few years ago. A new plant has recently been commissioned at an astronomical cost, but it can operate economically since it uses scheduled waste where the tipping fee is extremely high. SMALL HYDRO SYSTEMS Most of these plants are away from population centres but are normally connected to the distribution network in the vicinity; they can range from 1 or 2 MW up to 30 MW. However, micro turbines installed in large utility pipes can generate a few hundred kW for use by the water treatment plants, or for export to the distribution network. MECHANISMS FOR GENERATING AND SELLING POWER FROM RENEWABLES Feed-in-Tariff (FiT) The FiT was launched by the Sustainable Energy Development Authority (Seda) in December 2011 for solar PV, biogas, biomass and small hydro systems. The FiT is supported by a 1.6 % additional contribution on the monthly bill of electricity consumers. FiT for solar PV ended in 2017 due to the continuing fall in PV prices, bringing PV power prices down to almost Grid parity. FiT for the other technologies is still available but quotas are becoming more d