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Walmart Broadens ROI for Green Power

Harvard Business Review

Second, Bedore spoke about how Walmart thinks about its investments in green power: "There is an ROI calculation on all sustainability investments like on all projects, but.we For example] the longer term payback on solar helps us get to scale down the road.". EPA's latest list of the top 50 renewable energy buyers.

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A Refresher on Payback Method

Harvard Business Review

There are a variety of ways to calculate a return on investment (ROI) — net present value , internal rate of return , breakeven — but the simplest is payback period. What is payback period? Payback is by far the most common ROI method used to express the return you’re getting on an investment.