The answer to 'difference between 100 amp panel and 200 amp panel' is that a 200 amp electrical panel can handle more electrical load than a 100 amp panel. A 200 amp panel is typically used in larger homes or homes with high-powered electrical appliances, while a 100 amp panel is suitable for smaller homes with moderate electrical needs.
The main differences are that a 200 amp panel has more circuit breaker spaces, can handle higher total electrical load, and provides more room for future electrical upgrades. However, a 200 amp panel is also more expensive to install and requires a higher capacity electrical service from the utility company. Homeowners should choose the panel size that matches their current and anticipated future electrical needs.