About $8.5 million is available in the first round of grants.
The government said the fund was a key initiative in the target to cut WAâ€™s 2050 greenhouse gas emissions by 60% below 2000 levels, with low emissions technology a key way to reduce greenhouse emissions.
Successful applicants will be announced in the second quarter of 2008.
Meanwhile, a solar energy expert has said Federal Laborâ€™s pledge for a 20% contribution by renewable energy by 2020 was realistic.
Garry Baverstock, a key speaker at the recent Solar World Congress in China, said if anything, Laborâ€™s vow was considered â€˜conservativeâ€™ by world standards.
â€œIt is clear that up-to-date information needs to be presented to the Australian public,â€ Baverstock said.
â€œThe message is that sustainable energy systems are already a reality â€“ not a distant dream.â€