Salmond has said that between renewable and conventional energy generation, Scotland could export as much energy as it consumes. Many nationalists believe renewables could "re-industrialize" the country, which has suffered greatly from a decline in industry and manufacturing.
Critics say an independent Scotland's small population would not provide enough demand to support the renewable sector. Salmond argues that revenue from exporting renewable energy could cover some of the costs – while helping "keep the lights on in England."
Pounds and pence
If it approved independence, Scotland would have to decide whether to remain on the British pound, adopt the euro, or use a currency of its own. Salmond has said that Scotland would initially keep the pound, but eventually join the eurozone – a move that the UK has steadfastly resisted.
Scotland would have to renegotiate with Britain if it wants to retain the pound after independence. Alistair Darling, chancellor of the exchequer under the former Labour government and widely touted as the leader of efforts to keep Scotland in the union, warns that if Scotland left the union, it would be giving up its right to have a say in interest rates and other financial decisions pertaining to the pound.