Public confidence in safety of nuclear power was greatly damaged by the Fukushima Daiichi nuclear disaster, consequently Off-grid concept was applied more conveniently in Japan. Alternative energy technologies have become standard in newly constructed homes. Sekisui House Ltd, a famous Japanese house building firm pointed out that 80% of single-family homes were constructed with alternative energy technology such as solar panels and fuel cells. Reflecting the nation's mood, Executive Director of Sekisui Company states that "If you’re going to use electricity, you might as well make it yourself".