I don't agree it is deceptive, if Google paid for 1GW of renewable electricity to be generated and 1GW is contributed to the grid from renewable sources then everything is as it should be. If the EMF that gets to Google's servers happens to be provided by a nearby coal plant they have still caused 1GW to be produced by renewables. This is how the grid works, and how it has always worked, it's just that no one in the past has cared if it was coal, gas, hydro or something else they were getting it from. Organisations are now willing to pay a small premium to use an equal amount of energy as renewables are generated. Storage matters for the long term goal of a zero emissions grid, but is not necessary for the economics to work out and the benefits to be felt.