As part of the online tool, managers will be able to find out how they can accurately report how much power they use, shape company policies regarding consumption and become accredited.
Harry Morrison, from the authority, noted that SMEs can play an important role in helping the UK meet its 2020 carbon targets, which are to cut output by 34 per cent.
"What you can measure, you can reduce," he said, before adding that achieving recognition from the scheme would provide a "major opportunity" for a lot of businesses.
Earlier this year, pharmaceutical giant GlaxoSmithKline was given the first global climate change award from the Carbon Trust, after reducing its footprint by four per cent over 65 countries.
Posted by Richard Eden
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