Companies that install residential solar power tout this benefit as an easy way to recoup your investment but of course the results can vary widely and the laws about this also vary depending on where you live.
Powering your house with solar panels.
If your solar panels make more power than your house uses you can sell your extra power back to the grid.
How many solar panels do i need to power my house.
There are a number of reputable solar power system installers in south africa.
According to gauteng based solar power specialist company nexsolar the cost of solar power installation can range from around r63 000 to r200 000 depending on the size of the house and electrical output requirements.
Follow along to calculate the amount of solar panels your specific home will need.
If your home is already connected to the utility grid replacing completely the utility with a pv system might not be cost effective.
As solar panels age their power output decreases.
The calculator takes into account your local climate and uses your estimate of your roof s angle and orientation to make an accurate projection of your solar power generation and the number of solar panels that you ll need.
However this is just a minimum lifetime.
To get these numbers we used high and low panel production ratios to calculate how many solar panels are needed on average.
Most standard solar panel warranties ensure that your solar panels will last at least 25 years.
Some of the services also offer information on the estimated.
However the amount of power generated by a solar energy system at a particular site depends on how much of the sun s energy reaches it and the size of the system itself.
Moving your current usage to 100 solar.
A typical american home will need 14 36 solar panels to cover their power bill and at least 227 square feet of rooftop space to accommodate the solar panels.
The layout of your garden can also be important if you want to use the power from the main grid if your summer house or log cabin is too far from the outlets in your house and it isn t possible to lay a cable from your house to your garden building you won t be able to use it in which case solar panels can provide the perfect solution.
What are the costs.
It s normal for a warranty to guarantee that they will produce over 80 power output at the end of 25 years.
Assuming you are going to choose standard efficiency solar panels here are the most common sizes for residential solar systems and their kwh production potential to give you an idea.
The amount of power kwh your solar energy system can produce depends on the number of solar panels that can absorb solar energy and convert it into electricity.
How many solar panels needed for a typical house.