Off-Grid Solar

image: Solar Power Ghana John Deyegbe/Resolution Ltd

What is it? #

An off-grid solar power system generates electricity from solar panels and store it into solar batteries to power the house without connecting to the grid. As energy prices continue to rise, more and more of us are opting for self-sufficiency when powering our residential homes. For others, living in a remote location may mean that connecting to the national electricity grid simply isn’t an option. This is where off grid solar power comes in: off grid energy is an environmentally friendly answer to generate remote power and it living off the grid with solar power is a potentially profitable investment that could save you thousands in electricity costs and grid connection fees.

Off-grid solar systems consist of roof- or ground-mounted solar panels, a battery bank to store energy, an integrated backup diesel generator and an Inverter and/or Charger to act as an interface between the different inputs.

Off-grid solar power systems
components of an off-grid system

Compared to older off-grid systems, modern off-grid technology is very easy to maintain, fully automated and can be monitored and controlled online. A further benefit of modern off-grid systems is the quality of the power they produce. This power quality is often better than the average grid electricity and will extend the lifespan of your appliances and machinery.


How to properly size an off-grid solar power system? #

The most important steps in designing and sizing an off-grid solar power system is to determine the required electricity need. This will be done by a load analysis to calculating what the loads are, how many they are, how many watts each load is and how long each load is used every single day. Then we can determine the number of solar panels and solar batteries needed to run the house off-grid.

How long does an off-grid solar system installation take? #

Installations will depend on the size of the solar power system and the roof condition, but typically takes 1 to 2 days.

Are solar panels effective in winter? #

Solar panels generate electricity by sunlight and UV ray. A cool sunny days in fact provide a higher production, however the daytime hours are less in winter time. When designing a solar energy system, we included in the calculation the effect of change in seasons to the annual energy production.

 Is my house suitable for a solar power system? #

If your house is built to code, you will be able to install a solar power system on it. If the roof of your house is suitably flat and faces north, west or east, then it is suitable.