I know I shouldn't worry or lend him any money, but if I didn't, then he wouldn't have the fuel to get to work or one of his utilities would be cut off. Those are usually the things he needs to borrow for
Sounds like he is borrowing for the electricity or petrol to get to work because he/they have spent the electricity and petrol money on other more interesting things. He asks you to give him money for the electricity because he knows that if he asked you to give him money to do his house up, you would tell him to get to fuck.
It's not money they need, it's budgeting and being a grown up advice. They won't starve or have to sit in the dark and cold on two state pensions, especially if they own their house outright, they just won't have the money to pay for everything they want as well as everything they need.
How much of this money that you have 'lent' him has he paid back? I would stop giving him money and tell him to get budgeting advice. I believe the likes of Christians Against Poverty do this.
Moneysavingexpert is also a good resource, but if they have spent all of their adult lives being bailed out and being spenders not savers, I suspect it is too late for them to change.
If he tries the 'you have money, I don't, so you have to help me' crap, remind him that the only reason it's like that is because he's already spent his and now he's trying to spend yours too.