When a complete design patent application, alongwith the appropriate filing fee, is received by theOffice, it is assigned an Application Number and aFiling Date. A Filing Receipt containing thisinformation is sent to the applicant. The applicationis then assigned to an examiner.
Qualified solar electric property costs - Qualified solar electric property costs are costs for property that uses solar energy to generate electricity for use in your home located in the United States. This includes costs relating to a solar panel or other property installed as a roof or a portion of a roof.
Use the solar energy factor (SEF) and solar fraction (SF) to determine a solar water heater's energy efficiency. The solar energy factor is defined as the energy delivered by the system divided by the electrical or gas energy put into the system. The higher the number, the more energy efficient. Solar energy factors range from 1.0 to 11. Systems with solar energy factors of 2 or 3 are the most common. Another solar water heater performance metric is the solar fraction. The solar fraction is the portion of the total conventional hot water heating load (delivered energy and tank standby losses).