I’ve made purchasing decisions based on TCO projections from the yellow Energy Guide stickers (managed by the FTC). I’ve never knowingly made one based on the b

I’ve made purchasing decisions based on TCO projections from the yellow Energy Guide stickers (managed by the FTC). I’ve never knowingly made one based on the blue Energy Star stickers. (However if some kickback or tax credit scheme depended on those stickers, then I may have made a decision influenced by the kickback and therefore by the Energy Star sticker.) One particular example was a tradeoff calculation for water heaters. I forget what the exact TCO tradeoff point was but it was ridiculously short (between 1-2 years). I was replacing a leaking/failed heater and expected it to be shortly thereafter replaced due to a basement remodel we had planned. I bought the best insulated one as it saved money if we used it for just 2 years. 16 years later, that unit failed (we didn’t do the planned remodel). That was based on the FTC sticker only (plus my actual gas rates). Edit to add: we then replaced that water heater with an electric heat pump water heater (which is eligible for the IRS tax credit scheme, which requires they "must meet or exceed the highest efficiency tier (not including any advanced tier) established by the Consortium for Energy Efficiency (CEE)") and all of the EPA Energy Star rated heat pump ones do, but I'd argue that the heater would still carry the highest CEE rating with or without the Energy Star program, so I still didn't purchase based solely or primarily on any factor that the star under-pinned, but if there was a heat pump water heater that didn't have the sticker, I'd have had to look to be sure it was still eligible for the rebate.