What is the fine-grained topic of the following text: **Customer’s ability to monetize rebates, incentives and tax credits depends on several factors, including, without limitation, continued state subsidization of these policies, the applicable Sunrun product type, and whether a customer purchases or leases a solar system from Sunrun. Only return the topic.
Factors affecting a customer's ability to monetize rebates, incentives, and tax credits from Sunrun's solar systems