If you will be handling low inertia, the available market solution is a portable air conditioner unit, that you can later connect to green or on-site produced electricity. If you plan to increase inertia, other solutions apply.
But the best choice will be the one that answers best to all the needs: heating, cooling, domestic hot water, etc. So you should first identify all your needs, local potential sources, and then reformulate the question, if needed: many times the solution is in place already.
And, for better performance, the chosen system will imply fine-tuning your initial design.