The 179D Energy Policy Act gives taxpayers a deduction for installing energy efficient assets such as the building envelope, HVAC and lighting.

The Assessor is separate from Building/Planning department and they may not fully communicate with one another.

Also, if your income is that low your tax brackets should be relatively low so it may not be as efficient to take them anyway. 

I believe RE markets are efficient.  

Of course, I communicate with all guests and let them know that since they had such a great experience, just contact me directly the next time they want to visit.

@Theresa Harris I replaced the entire toilet with a higher efficiency dual flush.

@Lulu Pang The cost will vary depending on location as @Scott M. said and also depending on brand and efficiency of the unit you are installing.

If the deal is sized appropriately for only one individual (assuming they don't have years and years of experience built on systems and efficiency), perhaps you should be looking at something larger?

Those capable and efficient rehab professionals just don't exist in large numbers in this economy, and no amount of wishing will change that going forward.

You can efficiently market your own home to more people if you're trying to sell it.