In June 2010, Lumo Energy was incorporated as a company and as a business name in each of the four states in which it was active.

In 2014, Infratil sold Lumo Energy, along with Direct Connect, to government-owned Snowy Hydro for $600 million.

In 2010, the Queensland Competition Authority found Lumo Energy had the highest rate of unresolved complaints among the state's electricity retailers.

[3] In 2011, Lumo Energy lost a court case involving a customer whose gas and electricity were cut off over a $4,000 debt.

According to the Victorian Essential Services Commission, Lumo Energy sent the customer an initial letter which failed to mention separate disconnection periods for gas and electricity notices, as required by law.