Earlier this month, a new Arizona Public Service rate hike went into effect and one senior advocacy group said those on a fixed income may struggle to now pay their energy bills. According to the utility, the average residential customer will see an expected bill increase of about 8%, which translates to about $10.50 a month. They said it is all in an effort to continue to provide Arizonans with reliable and resilient power and make "critical investments" in their system. ...