article_snippet.sent: The ultimate goal is to develop panels that generate five watts per square metre (11 square ft).
article_snippet.sent: By comparison, a solar panel generates 150 to 200 watts per square metre .
article_snippet.sent: The ultimate goal is to generate up to five watts per square metre (11 square feet).
article_snippet.sent: By comparison, a solar panel generates 150 to 200 watts per square metre.