Makes an appearance after Thermonuclear Cell. Helps save up space. While with earlier offices it may have made sense to replace them one by one as the limits were approached, with this one, it might be more convenient to place a few at once and sell all lesser offices to free up space for more generators and budding Water Works.

As usual, keep away from heat, it will go up like a candle and replacing it is a hefty chunk of money.