Albertslund lies in close proximity to Copenhagen, so there are several possibilities for good and cheap accommodation. However, the closest is probably Wittrup Motel https://www.wittrupmotel.dk/en/. This is preferable if you need a bed.
For the asketic participants who don’t need such luxury, a nearby school has promised accomodation on the floor for free, BUT remember to bring your own sleeping bag and mattress. The school has showers, but bring your own towel which is the most useful item to carry around in our Galaxy (after a harp and a tuning key of course).