Solar energy production has regained momentum in Kerala. Anert's '1 Kilowatt Rooftop Solar Power Plants Programme' has reached 7,000 houses. The first rooftop power plant in the state (96 kilowatt) was inaugurated in Attappady recently. The KSEB's offer to draw electricity from panels with a capacity of 2 to 50 kilowatts to the main line has also made solar energy attractive. This would save the cost of a battery. KSEB has also launched a programme to popularise the solar version of inverters that have become ubiquitous in Kerala.