Web-Based Mapping of Electric Customer Distribution of Pln Sub-District Sawahlunto

Indonesian state-owned electricity company (PLN) in the sub-district of Sawahlunto is responsible for distributing electricity to all customers in Sawahlunto. Customers' scattered location in the Sawahlunto area has been a long-standing problem for the PLN, especially power loss problem. Therefore, it was necessary to build a web-based Geographic Information System (GIS) that includes all network distribution and customer information. The software development was accomplished using needs analysis, design, implementation, and application testing. Based on the functional needs analysis, we defined the desired functions, such as finding customer information, the nearest routes to customer locations, and showing each customer's power distribution network. The software was built using PostGIS and Google Maps with PHP and Javascript. Testing was conducted using the BlackBox testing method. Tests were performed on each function, and software output with input from the database was compared. Functional testing by three testers proved conclusively that this application fulfilled the design needs.