Amortization of a solar system
Is a solar power system worthwhile?
Economic arguments in favor of a solar power system
When does a solar power system pay for itself?
With a lifespan of 30 years, your system can even generate income for you. If energy prices rise, which is inevitable in the future, the system will pay for itself much faster.
The payback period for solar power systems depends on various factors. Generally, solar power systems pay for themselves within 8 to 12 years.
To calculate the amortization period of your photovoltaic system in years, the purchase and installation costs are divided by the sum of income and depreciation.
Below you will find the amortization calculation for your solar system. This will allow you to approximate the amortization of your solar system.
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Example calculation of amortization
3-person household approx. 4 kWp = 25 m²
Annual electricity yield approx. 4000 kWh
With 45% self-consumption
Annual electricity yield approx. 4000 kWh
55% of the yield is fed into the grid at 10 Rp per kWh = 220.- per year
45% is consumed on-site → Reduction of the electricity bill by 470.- (assuming an energy purchase price of CHF 0.26 per kWh)
How much does a solar power system cost?
Prices for solar power systems have fallen significantly in recent years. Currently, conditions are extremely favorable for achieving high profitability with solar power systems. Self-generated solar power is significantly cheaper than electricity from the grid:
The more you use your self-produced electricity, the more profitable your solar system becomes - and the cheaper your electricity bill will be.
Further topics on solar systems
Financial support
Are solar power systems subsidized?
Cost
How much does a system cost?
Monitoring and Service
Service at the highest level
Amortization
When is a photovoltaic system worthwhile?