The upfront cost of Owned Panels may be considerable, although financing may also be an option. You should undertake a realistic assessment of maintenance costs over the life of the system.
A Solar Lease or PPA will defer much of that cost over time. Such an agreement may also include required periodic maintenance on the solar company’s terms and at your expense. In the case of the PPA, there is also the cost of the actual power to be considered.
It is important to consider the full cost over the life of the equipment - purchase, fees, maintenance, and power. Compare these costs to your existing utility costs. Having done the math, you will be in a much better position to determine which option is truly less expensive.