Risk: Moderate

Starting a solar panel cleaning side hustle can involve risks for beginners, particularly if they can't afford to lose money. The main risks include potential financial losses due to buying equipment, spending time without generating income, and the possibility of not attracting enough clients to make a profit. While there are startup costs ranging from $200 to $500 for equipment and marketing, the profitability timeline can vary. Some beginners may struggle to cover these costs if they don't secure enough clients quickly. Online discussions mention instances where beginners spent money on equipment and advertising without seeing a return on investment. Given these factors, the risk level for someone starting from scratch is moderate.