Chancellor confirms £100m will support Scottish renewables with remaining £100m going towards Green Investment Bank
Government set to offer rebates to energy-intensive industries next month in a bid to lessen impact of carbon floor price
But response to Commons Energy Committee downplays prospect of offshore shale gas extraction
New figures show environmental taxes have fallen as a proportion of overall tax burden
Renewable energy industry fears under-reported "control framework" will force straitjacket on low carbon policy
Analyst firm predicts carbon tax will drive renewables investment, but could affect UK competitiveness
Green building industry welcomes reports budget will feature stamp duty tax breaks, but warns further regulation still needed
Whitehall negotiations over scope and remit of the proposed bank become tense as decision is expected by Friday