I might be misreading but maybe because 100% isn't possible? "Mind you, the integrated system plan was released last week and it did emphasise that although it

I might be misreading but maybe because 100% isn't possible? "Mind you, the integrated system plan was released last week and it did emphasise that although it is likely to be a renewable future, we'll still need gas as a supporting technology." Even ignoring times without sunlight they're nowhere close to full renewable saturation anyway (no one is), so considering it's cheaper for the bulk of use it seems like the prudent investment.