Construction Middle East: Arabian Civil Engineers by GineersNow GineersNow Engineering Magazine Issue No. 014, Sau | Page 21

Southeast Asia is touted to have an annual global horizontal irradiance ranging from 1,200 kWh/m2 to 1,800 kWh/m2, making the region highly ideal for developing solar power plants. Key Types of Distributed Power Systems Installed in Southeast Asia The key types of distributed power facilities installed in the region include biomass and waste-to-power, solar photovoltaic, and diesel/HFO/gas temporary rental power plants. Hybrid power plants and micro-grid systems are reportedly also being developed. Biomass and waste-to-power plants are ideal to supply the captive power needs of small- and medium-scale industries. This type of distributed power system enjoys wide government support across Southeast Asia, and benefits from abundant biomass resources, particularly in Indonesia, the Philippines and Thailand. Solar PV facilities, on the other hand, are gaining ground across the region, thanks to policy support and incentives. Thailand is at the forefront of the solar PV market in Southeast Asia, with an estimated capacity additions of approximately one GW in 2015 alone. Temporary power plants running on diesel or HFO still dominate the rental power segment in Southeast Asia, owing to significant cost-savings, rapid installation, wide availability of fuel, and inherent flexibility of use. Temporary power plants running on gas are also gaining popularity in the region, in recognition of their cost and environmental benefits. By going for the rental power option, one avoids the need for a significant upfront investment, and the long lead times associated with the construction of permanent power generation facilities. Industry studies conducted across Southeast Asia reveal that a permanent centralized power plant may Photo credit: Flickr take around five to ten years to become fully operational due to the obstacles created by environmental laws in the region and land acquisition requirements, compounded by overall construction delays. While waiting for the power plants to be constructed and activated, power companies in Southeast Asia, the likes of Meralco and the National Power Corporation in the Philippines, or the Perusahaan Listrik Negara in Indonesia and the Vietnam Electricity Company, will find numerous benefits in setting up temporary rental power plants to meet the immediate power demands of their countries. Temporary power plants are also scalable, in that its output can be tailored to the existing electricity demand of a community, a city or a province. They can also be installed even in areas with limited power infrastructure, say where substations are absent, because they can be directly connected to the grid having been equipped with the latest protection systems and advanced transformation and switching equipment. When the permanent power plants are completed, the rental power plants can be easily and completely demobilized, thus leaving no power facility not used or that will require further maintenance and servicing. The Growth of Distributed Power in Southeast Asia As Southeast Asian economies continue to grow in the coming years, the region’s demand for electricity will proportionally increase. While the region’s governments are implementing long-term programs to respond to future power needs, power utilities in Southeast Asia, including Tenaga Nasional in Malaysia or the Electricity Generating Authority of Thailand, can take advantage of the availability of distributed power generation systems, like temporary power plants. Distributed power facilities can help overcome topographical challenges in delivering power, circumvent power transmission and distribution limitations, and boost the electrification rates of various countries in Southeast Asia. Photo credit: Flickr