1.  Electrician Process operator Forester Customer service Staff Manager
Builds the planned power grid and execute the needed actions to maintaining electricity network operating.
Power Network Designer
Electrician
Is responsible of where and how electricity is produced and how it is transferred to customers now and in the future.
Takes care of that the fuel (wood) is of good quality and safe to the environment.
Process operator
Forester
Finds the suitable persons for each occupation. Negotiates salaries. Responsible for good working atmosphere.
Makes sure that electricity is produced as planned.
Customer service
Staff Manager
Sells electricity and takes care of billing. Solves problems together with the customers.
Makes sure that each power plant is delivered enough good quality and environment-safe fuel.
manager
Production
Is responsible of that enough electricity is produced in a safely and constantly.
manager
Purchasing

2. Heart monitor (in a hospital)
Fridge
Heart monitor (in a hospital)
Electric car
Stove
Electric toothbrush
Computer
Mobile phone
Powerbank
Electric door
Radio
Flashlight
Vacuum cleaner
Electric heater
Charger
Dishwasher
Washing machine
Street lightning
Base station
Elevator