Having the option to revoke citizenship only makes sense, this is regardless of how long the person might have had citizenship but would not be able if it would result into a person becoming stateless. Essentially this is a tool to use against individuals that are working against the state and as a result can potentially have it's citizen priviledges revoked.

The energy bill, does not equal giving away energy though it does mean Norway would have to comply to EU rules to have access to the open market since Norway is not an EU-member this is not a given. Norway ofcourse has the option to not adhere to EU-regulation but chooses to be partake in the package deal as long as it is beneficial. This comes down to taking a profit in some areas and losing out in others. Norway will have to provide cheaper electricity but also has received subsidies toward bringing about the energy infrastructure required.
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I am not in general a supporter of the EU as a whole but that is not to say that everything coming from the EU is disagreeable, to be objective you must look at something from various perspectives and angles.