• ‘Balcony solar’ may at last become a reality for flat residents in Britain
• Rise in legal action against renewables companies over minerals
• Britons could soon install balcony solar panels in flats and rental homes
• Australian government loans $100m to install EV chargers and solar panels at Bunnings and Officeworks stores
• This breakthrough turns old tech into pure gold — No mercury, no cyanide, just light and salt