@ Karuna, yes, he is alive. PN:
memberlist.php?mode=viewprofile&u=1485@Bomber, that is totally individual, depending on the grill you use. Best advice i can give you:
Invite some friends at your home, make some grill evenings and check how much charcoal you need for this evening with your buddies.
Then multiply with the days you stay on the event and intend to use the grill and multiply that with 1.5 just for security.
And: Just in case you miscalculated: You can get grillcoal every day in the local supermarket on the event grounds. Or in the next city 5 km away. In german summers, that is an item that you get in every DIY Store, Supermarket, Aunty Carlas Brick&Mortar Shoppe or even at the Gas Station. And the prices are very reasonable. Its not like you need a Kilo of Plutonium for your Flux Compensator ^^.