From there it's just math, the metrics of where best fit's for that strategy deployment.

However, for a commercial property or a commercial residential (5+ unit) property value is based on the income approach and reducing expenses in this case by producing electricity factors into that math and very well might increase the valuation enough to make sense.

When we did it, we did score some great deals, but what we found was that we were visiting so many properties to understand our "strike price" (the maximimum we would pay for the property when taking into account rehab costs, hold times, interest on any debt, closing costs, real estate commissions, a contingency reserve for "unexpecteds", etc) that the math started to not make as much sense.

It seems like it basically up to you to do the math on how much more you will potentially make selling each unit individually and then deciding if that extra $$$ is worth the number of extra hours you will spend.

Make sure you understand the basic math, what qualifies as a good investment, how to manage your investment and prevent losses, etc.I would start with Set For Life by Scott Trench.

I was shocked as I thought it would be very simple (which it is), but some syndicators will use funny math such as not counting fees, placing expenses on a quarterly or yearly basis when using IRR (backloading to end of year). 

I am a high school math teacher from the Pittsburgh, Pennsylvania area.

Quote from @Nicholas Dillon: Basic math on a napkin.When you cash out the equity, you borrow it from the bank.

Paper napkin math says skinny deal. 

Finding out what works best for you is the homework for business owner.