So, the best time to go solar is now. 40% Bonus Depreciation: 40% of the asset may be depreciated in the first year for systems placed in service in 2025. Bonus allowance drops 20% annually through 2027. The basis is the system price less half the ITC, and the value is a minimum 21% of the investment for a Colorado corporation, or up to 34% for a high-net-worth LLC member. Xcel Commercial & Industrial Solar Rewards Program: Should you choose to sell your Renewable Energy Credits (RECs) to Xcel Energy, they will pay for the production of your system for a 20-year term at the following rates, which are dependent on system size: Utility Savings: Every kWh produced by solar reduces what you buy from the utility, lowering OpEx. Increased property value: Lower OpEx and REC income increase net operating income (NOI), and therefore building value. What is the typical payback period for solar?