10. Home energy auditor
With the current price of electricity and water, everyone is looking for ways to reduce their utility bills. A home energy auditor could help them run their household more efficiently and reduce their monthly expenses.
How to start this business idea
You will need some electrical knowledge and an understanding of where a household uses the most water. Once you have this experience, you can provide them with an audit of their house and offer them a breakdown of how they can achieve real savings in electrical and water use. You could even do a complete appliance audit, with efficiency rating and calculations based on the age of the appliance.
How to keep this business idea successful
Not only will you need to develop numerous energy and water saving techniques, but you can also take it one step further and implement and install some of the suggestions in your customers homes yourself.