1. Warm-up #2 1.Describe how electricity is made in a nuclear power plant. 2.How are fission and fusion similar? Different? 3.In your opinion, what is the most important advantage of nuclear fission and why? 4.In your opinion, what is the most important disadvantage of nuclear fission and why?

2. Solar Radiation from the sun is converted into energy Where? 2 Types 1. Passive – No machinery – Building design – Examples South-facing windows Absorbing materials – Greenhouses – Color

3. Passive Solar Design

4. Photovoltaic cells – Solar panels – Movement of electrons = electricity! – Needs battery Where? – Residences – Farms Farms – ISS – Other Cost Active Solar Heating

7. Photovoltaics – Active Solar Advantages EES 1 st EES 4 th EES 6 th EES 7 th Disadvantages