Profit analysis of photovoltaic solar container power supply

Why should you invest in a PV-Bess integrated energy system?

3. Case study

How profitable is a photovoltaic installation?

In order to demonstrate the profitability of the photovoltaic installation, it was assumed that the average price of electricity (including electricity sales and distribution fee) in 2020 was 0.5622 PLN/kWh , and its year-on-year increase will be 3.5% [23, 35].

How efficient are photovoltaic panels?

As the installation has a power of less than 10 kW, 80% of the electricity previously fed into the grid can be obtained for free from the discount system [12, 13]. For the economic analysis it was assumed that the efficiency of photovoltaic panels decreases with time and the energy production decreases by 0.8% year on year .

Why should you invest in a PV-Bess integrated energy system?

With the promotion of renewable energy utilization and the trend of a low-carbon society, the real-life application of photovoltaic (PV) combined with battery energy storage systems (BESS) has thrived recently. Cost–benefit has always been regarded as one of the vital factors for motivating PV-BESS integrated energy systems investment.

Why should we invest in photovoltaic panels?

There is the necessity to develop environmentally friendly technologies. Atmospheric conditions affect the electricity production by photovoltaic panels. The source of investment financing affects time of its return. PI and CCE are one of the investment profitability indicators.

How much power does a photovoltaic installation use?

The surplus of generated electricity goes to the power grid. When selecting the power of the installation, one can assume that in the Polish insolation conditions, 1.25 kWp of the power of the photovoltaic installation is selected for each 1000 kWh of energy consumed annually [5, , , , , ].

How does a photovoltaic system work?

Photovoltaic cells produce direct current, while home appliances and the power grid use alternating current. For this, an inverter is used that converts direct current into alternating current. The surplus of generated electricity goes to the power grid.