All electricity suppliers should be required to obtain a percentage of their supply from renewable sources, says the Public Interest Advocacy Centre (PIAC), based in Ottawa. In a report titled Where Should the Green Choices Be Made, PIAC says voluntary approaches such as offering green power at a premium price will not be enough to kick start a renewables market, largely because there is not enough motivation for customers to buy into such programs. "Canadian policy makers must face the fact that market forces alone will not do the job. We need to develop new regulatory models," says Michael Janigan, PIAC's executive director. While government subsidy programs are likely to be successful, the report adds, they are vulnerable to loss of funding.