Risk: High

Starting a solar panel installation and maintenance service from scratch can be risky for someone who can't afford to lose money. The potential losses include financial investment in equipment, marketing, and training, as well as time and energy spent without seeing immediate returns. Beginners might spend money on tools, certifications, and advertising without securing enough clients initially. There are significant startup costs for equipment and training that may not pay off right away. Online discussions mention instances of businesses failing to generate profits due to intense competition and limited market demand. I'd rate the risk a 1 out of 3 because there is a high chance of losing money, especially if proper market research and financial planning are not done.