Kalkulatory opłacalności fotowoltaiki, pomp ciepła i kotłów. Oblicz oszczędności, okres zwrotu i koszty instalacji OZE.

The landing page is pretty straightforward but lacks some polish in a few critical areas. The value proposition is clear, emphasizing free, no-registration use of OZE calculators, but it's not very engaging. The design is visually appealing with a consistent color scheme that enhances readability, but the text could use more simplification. The calls-to-action are visible but could benefit from more strategic placement and urgency. Social proof is missing entirely; this is a huge oversight in building credibility. The Open Graph data is decent, but it won't wow anyone into clicking because it lacks creativity and excitement.