The 472 kilometre Mombasa-Nairobi phase of the project will be completed in three years. The next phase will be the 505 kilometre Nairobi-Malaba route to be followed by the 132 kilometre Kisumu branch line. The Government has started negotiations with the company building the Standard Gauge Railway for the extension of the line from Nairobi to Naivasha after they complete the line from Mombasa to the capital city. The extension of 120 kilometres will link special industrial zones that would be established at Naivasha, home to the Olkaria geothermal power plants, to Nairobi and Mombasa. To attract investors to set up industrial complexes at the specially designated zones near Olkaria, the government will offer them subsidised power tariffs. Firms will also have their power connected directly from Olkaria to ensure uninterrupted supplies, and in some cases, companies —such as those dealing in apparel manufacturing — will be allowed access to steam. The Government will also set up many industrial parks along the route of the SGR.