Understanding your use is critical Working through your energy use is the first step. We have put together some scenarios to help you understand what is needed and the possible energy consumed in the home. The system below was designed to allow for the use of 13kwh daily and 13.4kwh after hours, of course this is dependent on your daily use and the seasonal condition for charging the battery units.
The graph below shows a battery storage unit that is grid connected, the battery stored energy is used when the solar system isn’t generating enough energy to meet the demand reducing grid dependence and energy costs.
If you want to be Off Grid totally you will need to know exactly what appliances you intend to use and when including any water pumps or sewage system demand.
WE HAVE SYSTEM CALCULATORS ON REQUEST TO ASSIST.
Before you invest there some things we would like to share so you get as much from your solar system and
battery storage unit as possible, below is some information to help understand solar and its best use. Solar Power works naturally when the sun rises and sets, early
morning will see the energy produced from the solar system
increase as the sun rises allowing for more energy to be
consumed directly from the solar system, early and late in the
afternoon a solar system will have very low actual real power to
supply on demand and as result will see what is being produced
from the solar system used and any remaining demand will have
to come from the grid this isn’t ideal given that most homes have
a working family between the best hours of solar production
meaning most of the solar energy is sent back to the grid giving
you very little relief from grid use and energy charges.
Graph # 1 shows a typical home daily power use, the solar
production far outweighs the demand so 80% is exported and absolute
waste of your solar power.
Graph #2 shows a home with moderate energy use during the day
struggles to use all the solar energy produced, in this example what we
call the base load or demand didn’t exceed 2,200 watts but the solar
produced 5,000 watts sending 55% of your solar energy to the grid
again home battery storage system would have captured this surplus.
Graph #3 shows a home with high daily use will still see a high
percentage exported, battery storage will again capture this energy for
use when needed.
The inclusion of a battery storage solution whether an off grid power
unit or home energy grid connect system will enable you to capture the
solar energy while you are not at home or any surplus energy produced
even while you are home to be stored and used on demand when you
need it below is an example is a battery storage unit at work, the load
to the home was supplied by the solar and surplus captured for later
Graph # 4 shows Load shifting is also important, if you can manage to
move your heavy loads such as appliances for cleaning or washing to after
10Am and before 2Pm and include such things as your pool or water pumps this will help reduce the battery capacity needed in your home battery system, batteries are the single most costly part of a battery storage of off grid power system so smart load shifting will reduce battery quantity and battery storage prices.
Going to stand alone power isn’t complicated, if you size your solar system
and batteries and install an expandable battery storage system you will feel comfortable enough to disconnect from the grid and have a truly stand alone solar system and home battery storage unit.