The IRS would probably deny (c)(3) exempt status to an organization such as this.  It has denied charitable status for scholarship funds for specific for-profit schools.  Providing heat and electricity for people who otherwise can’t afford it and would be without shelter if the utilities were not paid for them has a very different ring of charity than providing summer camp at one for-profit organization.  If there were a scholarship fund for summer camping experience for low-income kids that occasionally made a grant to a for-profit, it might pass muster with the IRS.  But designating all of the grants to the same for-profit would probably be considered an improper benefit to the for-profit and cause the denial of charitable status.