Collins said the rationale for EECA's decision to exit the programme was based on a review that showed return on investment was low.
"Based on the findings of the review I agreed with officials' advice that the programme should be discontinued and I expressed that view to the Board in my letter of expectations dated 16 February 2017."
Gareth Hughes, the Green Party's spokesman for energy and resources, said the Trump Administration had recently decided to scrap the Energy Star system.
"Collins is copying Donald Trump, and we'd be asking why on earth you would want to do that. EECA's own data shows how successful it has been and the Government is not proposing to replace it with anything else. So consumers are going to be worse off and have less information."
Hughes said the rating label scheme that would remain in place served a different purpose as it rated appliances from the least energy efficient to the most. The soon-to-be-scrapped energy star was on only the most efficient appliances.
"So if people go out looking for the best product to buy - which of course is in the national interest - that information won't be as easily accessible."