I had the electric ripped off a property a tree.

Your clients are motivated sellers.You can NOT convert people who do not want to sell  (below market value) into people willing to sell below market value.The mistake people make (constantly) is their efforts are based on forcing non-motivated sellers to sell, by constant harassment.This is wrong.Instead of mass mailing blanket mailing,  and putting your energy in finding random people and forcing them to become motivated by putting a ton of effort and money into follow-up, you need to focus on targeting the RIGHT people.People who are actually looking for your service.Hopefully, it changes your perspective and you can improve your business.

The tenants know the mini split is their best bet for controlling temp on their side, but they do not want to not pay for the energy to run it and would prefer the gas gets used (gas is included in their lease.) 

So I am not sure whether I really need sources of passive income right now considering that I have a lot of energy that I can spend on investment strategies that require more efforts and energy.

Do you look for an acre with city water and electricity and build on that or do you put in your own?  

In the bay area; Pine cone lumber, economy lumber, lumber liquidators, herning underground, conliff plumbing,bedrosians marble, consolidated electrical, edges electrical, o'hare plumbing,ewing irrigation, aaron overhead door, mintons door, stucco supply co, whitecap, aydins window, savin windows and those are just a few I can think off.

@Brett JurgensSolar on my house would be around $40k and my electric bill is not even 200.

Evaluate the numbers and your time energy lifestyle for managing rentals out of state and how those align with your why you're investing in RE. 

You can also write it off as a business expense and there could be additional tax benefits for energy efficient home improvements.  

If you have to go through the utilities companies for city hook ups or gas or electric?