User: wiscguy61, Location: Windsor, CO NEC: 2017
Asked on: Sunday, April 10, 2011 at 10:19 am EDT
Answered on: Tuesday, May 14, 2024 at 4:01 am EDT
Question: is there a formula to figure out how much solar power one needs for their house online somewhere. Is it feasible to section off a portion of a house if it has a seperate circuit breaker panel?
Formula to Calculate Solar Power Needs
There is no universal formula for determining solar power needs due to various factors such as location, electricity usage, and energy efficiency of appliances. However, a general approach is to:1. Determine your
average daily electricity consumption (kWh) from your utility bills.2. Multiply this value by the number of peak sunlight hours in your area. This can be obtained from solar data websites or your local utility company.3. Divide the result by the efficiency of your solar panels, typically around 15-25%.
Example
Average daily electricity consumption: 10 kWh Peak sunlight hours: 5 hours Solar panel efficiency: 18%Solar power needed = (10 kWh x 5 hours) / 0.18 = 277 kWh
Sectioning Off a Portion of a House with Separate Circuit Breaker Panel
It is technically feasible to section off a portion of a house with a separate circuit breaker panel and connect it to a dedicated solar system. However, there are several considerations:
Electrical safety
Ensure that the wiring and equipment are properly installed and certified by a licensed electrician.
Backfeeding
The solar system should not backfeed into the main electrical grid, which can pose safety hazards.
Limited backup power
The sectioned-off portion will not have access to power from the main grid during a power outage.
Cost
Installing a separate solar system can be more expensive than a whole-house system.
Functionality
Certain appliances and systems may not be compatible with being isolated on a separate circuit.
Recommendation:
While sectioning off a portion of a house with solar power is feasible, it is generally not recommended for the following reasons: It can be more complex and expensive than a whole-house system. It limits functionality and backup power options.* It may not be the most efficient use of solar resources.Consider a whole-house solar system to maximize the benefits of solar energy and simplify installation. Flag for review