Kai Schuhmacher spent years traveling around Germany as a consultant for PV system owners. He said the question that all customers immediately ask is: “When will my photovoltaic system pay off?” The ...

If you've contemplated installing solar panels at your home but hesitated because the finances felt overcomplicated and unclear, you're not alone. Fortunately, there's a fairly simple formula you can ...

Businesses need to make investments to grow — that’s a given. But how do you know which investments are likely to be worthwhile? There are a variety of ways to calculate a return on investment (ROI) — ...