That's what I assumed they meant too, but I would question whether biomass really counts as renewable in quite the same way as solar/hydro/wind. It's a pretty broad category that can hide a lot of sins.
Most of the biomass burnt in the UK is from managed forests in the US. It's renewable in that you can grow more trees, but I agree, it's not necessarily carbon neutral or environmentally neutral. That said, neither is anything else - it's all a question of degree.
That's what I assumed they meant too, but I would question whether biomass really counts as renewable in quite the same way as solar/hydro/wind. It's a pretty broad category that can hide a lot of sins.
http://blogs.ei.columbia.edu/2011/08/18/is-biomass-really-renewable/