The phrase 'lack electricity' is correct and can be used in written English.
For example, you could say, "In many parts of the world, people still lack electricity."
We lack electricity, while roads and the sewage system are not finished," he said.
The patience of voters who still lack electricity, water and other basic services is wearing thin.
At present rates of progress, 300 million people in Africa will still lack electricity by 2040.
Her neighborhood continues to lack electricity, so the well will not operate.
Of Gaza's 1.5m people, two-thirds lack electricity and nearly half have no running water.
In some settlements Roma families lacked (and continue to lack) electricity, running water or sewage systems.
Three-quarters of homes lack electricity, a third are without running water or sanitation.
Most of their thatched huts lack electricity; sanitation consists of open latrines built over the sea.
More than 630 million people lack electricity in sub-Saharan Africa, according to the International Energy Agency.
People lack electricity and running water, but that is nothing new in Afghanistan after two decades of civil war.
But most schools still lack electricity or water – nine in 10 children cannot wash their hands after using the toilet.
