Investment

Renewable energy giants seek to bolster capital and finance long-term expansion plans

From troubled solar firms to Norway's ban on cars, we run down the biggest stories from the past week

But uncertainty over state incentives threatens to hinder ambitious project

Innovative Oyster wave energy generator on track for first full deployment this summer

Engineers fear incentives for electric cars could undermine hydrogen and biofuel research

Report claims early capital-intensive and early-stage clean tech firms are set to lose out to less ambitious efficiency-focused rivals

But experts remain confident there is light at the end of the tunnel

Forestry offsets may have been much maligned in the past, but acording to EcoSecurities Lisa Ashford, they could have an increasingly important role to play in emission reduction

LSE claims £15bn in broadband, smart grids and transport management systems would provide greater economic stimulus than spending on roads and bridges

Lower-emission vehicles vital to reduced fleet costs, say industry experts