Yeah, up until someone can crack through to making a hardtech fusion reactor that is as convenient to use, easy to refuel, safe to handle, and fits in the same package, as a typical 'waved power source, odds are it's not going to take over for the Fen for a while. Some larger installations might eventually put one together for their needs, but it certainly won't be common for decades.
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor
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"You know how parents tell you everything's going to fine, but you know they're lying to make you feel better? Everything's going to be fine." - The Doctor