Rather than logos, have participants use a famous tag line or marketing slogan. Break the group into small teams of four to six members. Have the team choose a logo that best represents them. Alternatively, choose a logo that best represents the project or the whole work group they belong to.
Your body makes vitamin D when your skin is exposed to the ultraviolet B (UVB) rays in sunlight. About 5 to 30 minutes of exposure to the skin on your face, arms, back or legs (without sunscreen) two times every week is enough. But, too much exposure to sunlight is a risk for skin cancer, so you should use sunscreen after a few minutes in the sun, even on hazy or cloudy days.
This depends of what you mean by a 5kw system. If you mean 5kw of panels then you produce 5,000 watts of power per hour. Depending on where you live, the season and number of optimal sun hours will give varying results. Lets say you get 6 hours of optimal sunlight daily, then you would produce 30kw of power.