Tomago Aluminium says the plan is desperately needed, but big power companies say it needs further scrutiny. : The most energy-intensive manufacturer in Australia says NSW's bold renewables plan is desperately needed to deliver cleaner, cheaper and more reliable electricity. Tomago Aluminium, which consumes 10 per cent of NSW's power, has been warning the state government that rising energy prices could have a significant impact on its NSW operations. Chief executive of Tomago Matt Howell said price and reliability were crucial for the aluminium smelter, which is the largest energy user in the country.