If you want to have a tailored solution for your house, input your monthly electricity bill below and the calculator will suggest you the best solution. Start with your location and add your monthly cost of electric from the grid and/or from diesel if you have a generator. The list of appliances shows you what you can run off the system. You can choose between two different battery solutions depending on your budget and needs.
A solar photovoltaic system consists of solar panels that generate DC electricity when the sun is out. They generate more electricity when they are directly facing the sun and when there are no clouds or shadows blocking. In order to transform the DC electricity into usable AC electricity for your appliances an inverter is needed. The lithium batteries will store the excess of electricity produced during the day to power your need during morning, evening, night time and when there is no grid.
First of all is the daily energy demand determined by looking at electricity bills, appliances power rating and their usage, or by logging the actual electricity consumption. The next step is to look at the solar insulation statics for your specific location and calculate how many solar panels are needed to generate that daily energy demand. The inverter is dimensioned after the peak power, meaning all of the appliances being used at the same time and at full effect. The batteries are sized based on your needs when there is not sun and an extra battery can be added to make sure you will always have enough energy if the grid is cut for a long period of time.
For small residential systems the installation time is seldom longer than 2 days. Larger industrial or utility projects could span over 6 months depending on the size, available area and specific requirements.