The answer to 'what size panel upgrade do I need' is that the size of your electrical panel upgrade depends on your home's current and future electrical needs. As a general guideline, most homes require a 100-200 amp electrical panel to safely and efficiently power modern appliances and devices.
When determining the right panel size, consider factors like the square footage of your home, the number of bedrooms, the types of appliances and electronics you use, and any plans for future home expansions or additions. A qualified electrician can assess your specific needs and recommend the appropriate panel size and configuration to ensure your home has sufficient power capacity.