  Energy-intensive industries can adapt to help balance the power grid. By
using a real-world case study of a zinc galvanizing process in Denmark, we show
how a modest investment in power control of the furnace enables the provision
of various ancillary services. We consider two types of services, namely
frequency containment reserve (FCR) and manual frequency restoration reserve
(mFRR), and numerically conclude that the monetary value of both services is
significant, such that the pay-back time of investment is potentially within a
year. The FCR service provision is more preferable as its impact on the
temperature of the zinc is negligible.
