As I said last December, National Grid ignored storage in their 2009 ‘Gone Green Scenario’.
Clean Technica (http://s.tt/14Mwl)

“They made NO provision for energy storage to go with 25GW of projected wind power.”

And they’ve done it again in ‘Gone Green 2011’.

http://www.nationalgrid.com/NR/rdonlyres/F6FA7970-5FEA-4918-8EE2-2A8E6B9626FF/50214/10312_1_NG_Futureenergyscenarios_factsheet_V2_st3.pdf

The projection is for a fall in demand – highly unlikely.

“First new nuclear plant connects in 2019/20” – very doubtful.

“26 GW of wind capacity in 2020 (17 GW offshore) and 47GW (37 GW offshore) in 2030”

That’s going to be difficult to manage without electricity storage.

“Intermittent generation managed with Smart technology: demand side reductions and cars charging overnight.” Yes, that can help, but storage works better.

As I suggested, energy storage before generator, integrated in off-shore renewables, is a superior supply side solution, with none of the drawbacks outlined above in the article. Dispatchability is a game-changer for grid operation.

The key point is – it’s far more efficient and more profitable if you don’t generate electricity when there’s low demand!!! Not too difficult to see that, is it?