1. Type of Solar Panel There are primarily three types of solar panels monocrystalline, polycrystalline, and thin-film. Monocrystalline panels are often the most efficient but also tend to be the most expensive, typically costing between $300 to $600 per square meter. Polycrystalline panels are somewhat less efficient but more affordable, costing about $200 to $400 per square meter. Thin-film panels are the least efficient and generally range from $100 to $300 per square meter.
Some utility companies offer loans to support the installation of residential solar systems. Similarly, state and local governments may also provide loan options. This heavily depends upon your utility company and the area in which you live.19
Additionally, costs can be influenced by installation requirements. Roof design, structural integrity, and local building codes can all impact installation expenses. Homeowners in areas with more sunlight exposure typically see a quicker return on investment due to increased energy production, which can justify the initial expense.
2. Reduced Wiring Costs A higher voltage system requires a lower current to deliver the same power. This means that 48V systems can use thinner cables for installations, which can lead to significant savings in wiring costs. Moreover, thinner wires are lighter and easier to handle, making installation more manageable.