Hubby needs "emptying" every night, is this normal?

No. If he's making you do this when you don't want to, that's rape. If he won't stop, you need to get out of that situation.

Gosh, sex is for both to enjoy. It sounds like he doesnt want a wife, but a hooker.

I´d say that this situation is a classic example of libido mismatch. Some men really do have sex drive, I mean higher sex drive than average - personally, I need to ejaculate every day, preferrably at least twice a day, and I am 36 years old. I understand that most women would find it impossible to comprehend, at least this was my experience in past relationships. All of them ended and the discrepancy of sex drives and unwillingness to compromise was the main reason which got transformed into other areas of the relationship as well. Only when I started to live with my current girlfriend who has the same level of sexual desire and she needs to have sex every day, more than once a day, only in this relationship sex is a source of pleasure and not suffering for both of us. But I understand that we are probably in a small minority, so it may be difficult to find someone with similar sex drive if you are not in the "norm" when it comes to frequency.
Yes, masturbation is an option, but having to rely on masturbation and being sexually refused by your partner who refuses to help you with your physical and emotional needs will not lead to feelings of satisfaction with his sex life and prossibly with the relationship as a whole.
Just my perspective. I can relate to your husband, but I also see your point - all of my ex-partners could relate to your situation.

Teach him how to masturbate?

Talk to him about it, explain how unhappy you are and come up with a compromise that will make you both comfortable.

I'd quite happy jizz in her pants if i needed a daily release you should give him some knickers and let him cum in them

Do a trade off whether you're tired or not. You could still get one in return before going to sleep. Not up for it? Try it anyway at least just to see. Who knows? You might prove yourself wrong and like that trade off more than you thought.

He needs 'emptying' what a vulgar way to put it. Tell him to empty it in a cantaloupe, his car's tail-pipe, or his boss' mouth.

Put your foot down. He makes you sound like a tool. I would say if you're relationship isn't the type where you are comfortable with him masturbating, then maybe you can find another time in the day to "releive" him. Or compramise and give him a handjob? He can't treat you like shit if you don't give him one though, every day can be tiring. But if you're not in a relationship where you let him do that stuff, you should understand that he has needs and help him out. IF you aqre however, I would tell him to "go have a shower" Or soemthing, if yah know what I mean. It sounds shitty, but that's how it is. OR! This might sounds gross to the wrong person, but I like to watch my partner play with himself, it gets me going so that I eventually want to to. Or maybe 69?