About Green Star Energy
Green Star Energy, formerly known as Pioneer Energy, is new to the energy market having launched in July 2013, and supplies gas and electricity to residential customers in the UK. It is part of the Just Energy Group - a provider of energy solutions to residential and commercial customers across Canada and North America.
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Contact Green Star Energy
New and existing customers - 0800 012 4510
Contact Which? Switch by phone
You can call us on 0800 410 1149 or 01259 220 235.
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