Board Thread:Game Discussion/@comment-10276925-20130802041105/@comment-24829928-20140711221818

76.105.62.129 wrote: How can I get energon chains without buying them? Necro thread, but your question is valid, so I'll take a swing at it.

Energon nets (blue ones) are found in the point rewards and won from bosses. Hard Campaign bosses do not return them much however, usually better to farm Easy or Medium Campaign.

But, as the thread details, nets have such a subpar capture % that there is nearly no reason to focus on net farming. Chains (orange ones) are the 100% and are best. They are found as log-in rewards, select point rewards, or purchased off the Space Bridge.