1 00:00:00,180 --> 00:00:04,019 So, how efficient would you say the solar panels on the gym are? 2 00:00:04,580 --> 00:00:10,179 Our solar panels are 100% efficient because they produce all the energy that we use. 3 00:00:10,500 --> 00:00:18,780 For example, now they are producing more energy than we use, and the remaining electricity is provided to the main current. 4 00:00:19,559 --> 00:00:22,920 Oh, wow. So, what happens when it's not a sunny day? 5 00:00:22,920 --> 00:00:29,239 When we don't have the light of the sun, we use the electricity for the main current. 6 00:00:29,239 --> 00:00:30,739 Hmm.