3.5.1. PV Potential on Roofs

The Pomerania Voivodeship has average/good conditions for the development of solar energy. At the end of 2020, there were already 89 photovoltaic (PV) farms in the region, with a total capacity of 59.2 MW [78]. There are also thousands of prosumer installations and thousands of solar collectors.

It was assumed that 10% of roofs in the Pomerania Voivodeship will be covered by PV. The value of electricity that can be obtained from the PV panels can be obtained from the following formula [55]:

$$\mathbf{E}\_{\mathbf{f}} = \mathbf{0}.1 \cdot \mathbf{0}.15 \cdot \mathbf{P}\_{\mathbf{d}} \cdot \mathbf{U} \cdot \mathbf{N},\tag{14}$$

where: Er—electricity that can be obtained annually from PV on roofs (J/year), Pd—roof area (62.3 km2) (m2), U—insolation (h/year), converted to (s/year), N—insolation (W/m2). Thereceivedannualamountofenergy is 0.231TWh(833TJ).
