Beam weapons are energy weapons. They operate off the Standard Energy Unit, stored in special cells that are easy to distribute:
| Ammo Type | Cost (Cr) | Mass (kg) | Energy/Rounds |
| Power Clip | 100 | -- | 20 SEU |
| Power Beltpack | 250 | 4 | 50 SEU |
| Power Backpack | 500 | 10 | 100 SEU |
Powerclip
The standard 20 SEU powerclip is a sturdy plastic box about the size of a cigarette pack. A powerclip will fit any weapon that can use a powerclip. Players must keep track of how many SEU are in the clip. Powerclips can not be recharged.
Power Beltpack
A power beltpack is a 20 cm x 8 cm x 5 cm plastic box that attaches to a character's belt. It comes with three different powercords that can be plugged into three distinct outlets in the side of the unit. One port is for weapons, one is for screens and one is for auxiliary equipment such as scanners or radios. Only one weapon and one screen can be plugged into a beltpack at the same time. Beltpacks can be recharged at a cost of 5 credits per 1 SEU recharged. Recharging can be done at any weapons shop, hardware store or fuel station.
Power Backpack
A power backpack is worn on a harness that slips over the shoulders. Special adapters are available for Dralasites at no additional cost. A backpack has two weapon ports, one screen port and three auxiliary ports. Only two weapons can be connected to the same backpack. Backpacks can be recharged for 5 credits per 1 SEU recharged. It takes two turns to plug in or unplug a powercord from a power backpack.
(source- Star Frontiersman "weapon repository")