Using 529 funds and Pell Grant

HI My son received a full scholarship for Marquette University that includes full tuition, all fees. He will be living in the Evans Scholar house and although housing is included, there is a $2500 per year cost for utilities, upkeep etc that gets paid to the Evans scholarship foundation. He will need to pay for books, meal plan and a computer which he will need. He received $850 in Pell Grant money and $500 private scholarship. I also have $4k saved in a 529 plan. How can I best use these funds without getting penalized by the government? I'm a single parent and cannot afford to seek the advice of a tax consultant. I always do my taxes on my own. Thanks in advance!