The last thing you want is to be surprised at trial with the damaging testimony. Therefore, it is usually wise to take that witness' deposition so that you will know in advance what that witness will say. A deposition does not take place in court. Instead, it usually takes place at an attorney's office. The attorney will ask the witness, or deponent, a series of questions about facts related to the lawsuit. The rules allow some latitude in the areas that can be inquired into.
Life Expectancy of Solar Panels. With care and cleaning, solar panels can last up to 40 years. Certain issues can make them fail, but in general a solar panel is a long-lasting device and a good investment. Basics. Solar panels have no moving parts, so as long as they remain sealed they can work. The typical manufacturer's warranty on a solar panel is 25 to 30 years, but panels can last up to 40 years with care and attention.
The warranty conditions for PV panels typically guarantee that panels can still produce at least 80% of their initial rated peak output after 20 (or sometimes 25) years. So manufactures expect that their panels last at least 20 years, and that the efficiency decreases by no more than 1% per year. What makes talking about lifetimes for PV panels difficult is the fact that very few panels have been installed for long enough.