Solar power for own use
Solar power is and will remain attractive for house owner-occupiers.
In the following years, electricity prices are most likely to return to an upward trend, and therefore renewable energies will be the most important contribution to our energy supply. Even in the past 10 years, electricity prices have increased by 30 percent.
While prices for feeding photovoltaic power into the grid are still falling, solar power is still by far cheaper than the household energy provided by your energy supplier. That`s why it makes total sense to organize your own energy supply.
If a household has no demand for electricity or your solar system produces more electricity than you consume, your excess energy can be fed into the public grid and will be compensated with payment. Building your own photovoltaic system and combining it with an efficient solution for your own consumption will not only make you independent of your local energy provider but also saves you from long-term price increases for decades.
Producing your own energy:
it is easier than you think.
An individual household has an average annual power consumption of between 3000 and 4000 kilowatt hours. A system with a rating of 3 to 5 kilowatts is large enough to cover this energy requirement. This translates into a roof area of 30 to 40 square meters.
Depending on the amount of sunshine and the quality of your photovoltaic system, you can achieve a rate of energy production of about 900 to 1100 kWh/kWp per year. This output is more than enough to cover the annual power requirement for your entire family using just your solar power system. Quickly you can reach a 30 percent own consumption rate with a total system production as small as 4 kWp.
This rate of self-production can be increased further through the use of intelligent energy devices and by flexible on and off usage through the consumer. Every kilowatt hour you consume yourself will save you money.
You can feed in the portion of power that you do not use immediately into the mains through your feed-in counter and get paid for it. If your consumption exceeds the production capacity of your photovoltaic system, you can then take the missing power from the mains. Monitoring solutions are of particular relevance to solar power systems without battery storage. Such solutions continuously show how much power is being produced at any time and comparing it against the electricity you are currently consuming.
You can then decide for yourself which of your energy consuming devices you should switch on. Using intelligent energy management systems, consumers can even allow this process to run automatically. Depending on their different consumption profiles, users can have a timer in their individual systems controlled directly on the basis of typical consumption rates and local sunshine projections. As a result, you can achieve even higher own usage rates – up to 45 percent.