Here is a sample letter for your reference:
09 November 2011
Editor in Chief
Subject: Growing problem of frequent power cuts in our locality
This is a matter of great concern that our locality is severely getting affected by frequent power cuts in the recent month. Because of all this, very tragic effects can be noticed on the health, mental stability and study habits in our children.
Every family member in the family is facing problem. Aged are unable to get the rest and relaxation they require. It is difficult to bath without geyser in such a cold weather. Kitchen work and other chores of our mothers are getting disrupted as well. The conditions are undescribable.
I thank you in anticipation and expect the condition to improve soon in near future.