Stable income: Somewhat stable

Solar panel cleaning can be a moderately stable source of income for most people who try it. Based on online research and my knowledge, while there is a decent baseline of demand, income can be somewhat unpredictable due to factors like weather conditions and seasonal variations. Some months may yield similar earnings, while others might bring fluctuations. I'd rate it a 2 out of 3 because while there is potential for consistent earnings, it may not provide the same level of stability as a traditional job.