When the sun comes out in the morning, the petals will seek the sun, find it by searching for the highest temperature About a minute and a half or two minutes after the rays are striking the hot cap the engine will be warm enough to start and then the engine will generate electricity for about six and a half hours a day -- six and a half to seven hours as the sun moves across the sky A critical part that we can take advantage of is that we have these inexpensive microprocessors and each one of these petals are autonomous, and each one of these petals figures out where the sun is with no user set-up.