TOKYO -- Tokyo will begin requiring solar panels on roofs of new homes in a bid to satisfy both increasing energy and decarbonization demands, though concerns linger about the measure pushing up already high home prices.
Metropolitan government's mandate is first in Japan for detached houses

About 2.25 million buildings in Tokyo are suited for solar panels, according to one estimate. (Photo by Naoyuki Kozuki)
TOKYO -- Tokyo will begin requiring solar panels on roofs of new homes in a bid to satisfy both increasing energy and decarbonization demands, though concerns linger about the measure pushing up already high home prices.