When choosing a photovoltaic panel, it is essential to consider the efficiency, cost, and available space for installation. Monocrystalline panels are the most efficient but also the most expensive. Thin-film panels are the least efficient
Solar panel system sizes are normally expressed in kilowatt peaks (kWp), which is the maximum output of the system. Household solar panel systems are typically up to 4kWp. We spoke to more than 2,000 solar panel owners about
