Whenever in the opinion of the city council the public interest or convenience may require, that body may:

1. (a) Order any street lighting system to be maintained in or along the whole or any part of any one or more of the streets in such city.
2. (b) Order electric current or energy, gas, or other illuminating agent to be furnished for such street lighting system.
3. (c) Determine and declare the lands to be benefited by any such improvement.
4. (d) Assess, either partly or wholly, the costs and expenses (including all incidental expenses) of such improvement, or of any one or more of the items thereof, upon the lands benefited.