Long - Term Cost - Effectiveness
Although the initial investment in photovoltaic systems may seem high, they offer long - term cost - effectiveness. Once installed, the energy from the sun is free, eliminating the need to purchase fuel or pay high electricity bills from the grid. With advancements in technology, the cost of photovoltaic panels and related equipment has been decreasing. Additionally, in many regions, there are incentives, subsidies, and feed - in tariffs available, further enhancing the economic viability and ensuring a good return on investment over time.