One disadvantage of solar power is its intermittent nature. Solar energy is dependent on sunlight, so it is only available during daylight hours and can be affected by weather conditions such as clouds or rain. This means that solar power cannot be generated consistently throughout the day or year, which can limit its reliability as a sole source of power. Additionally, solar panels require a large surface area to generate significant amounts of electricity, making them less suitable for densely populated areas with limited space. The initial cost of installing solar panels can also be high, although this can be offset by long-term savings on electricity bills.