Electricity started in Sabah as early as 1910 supplied by 3 separate organizations.

In 1957 these three organizations combined to form North Borneo Electricity Board.

The SESB installed capacity (excluding IPP) of the Sabah Grid which supplies electricity for major towns from Federal Territory of Labuan to Tawau is 430.9 MW and the maximum demand is 760 MW (as of Jun 2010).

To support the growing demand, various generation, transmission and distribution projects will be implemented.

The transmission circuit length (in circuit-kilometres) as in December 2007:[3] Distribution system capacity as in August 2009:[4]