Quick Answer
To calculate the ROI for bifacial solar investments, you must consider the increased energy production, reduced panel costs, and potential tax incentives. This involves calculating the payback period and net present value of the investment. Bifacial panels can increase energy production by up to 25%.
Understanding Bifacial Panel Efficacy
Bifacial solar panels generate electricity from both the front and back sides, increasing energy production by 10-25%. The added efficiency can be attributed to the ability of the panel to harness reflected light from nearby surfaces, such as the ground or other panels. This enhancement in energy production translates to a higher ROI for bifacial solar investments.
Calculating Payback Period and NPV
To calculate the payback period and net present value (NPV) of a bifacial solar investment, you’ll need to consider the following factors: initial investment cost, panel efficiency, system size, and anticipated energy production. The payback period is the time it takes for the system to recoup its initial investment through energy savings. NPV represents the present value of future energy savings. A shorter payback period and higher NPV indicate a more attractive investment opportunity.
Quantifying ROI with Real-World Examples
For a 10 kW bifacial solar system with a 21.5% efficiency rate, the increased energy production could be approximately 1,400 kWh/year (based on a 10% backside efficiency). Assuming an electricity cost of $0.12/kWh, this equates to $168 in annual energy savings. With a system price of $2.50/W ($25,000 for a 10 kW system), the payback period would be approximately 15 years. However, bifacial panels can potentially reduce the payback period by up to 3 years due to the increased energy production.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.