Generator installation involves manufacturers, distributors, and retailers, each with specific roles and responsibilities. To ensure optimal performance, consider entities based on their “closeness” score: high closeness (manufacturers with expertise and quality), medium closeness (distributors and retailers with distribution networks and support). Compare entities based on closeness, product quality, experience, and market presence. When choosing an installation entity, prioritize cost, availability, and reputation. Installing a generator requires careful selection to guarantee reliability and performance.