  Security and privacy in Direct Load Control (DLC) is a fundamental challenge
in smart grids. In this paper, we propose a blockchain-based framework to
increase security and privacy of DLC. We propose a method whereby participating
nodes share their data with the distribution company in an anonymous and secure
manner. To reduce the associated overhead for data dissemination, we propose a
hash-based transaction generation method. We also outline the DLC process for
managing the load in consumer site. Qualitative analysis demonstrates the
security and privacy of the proposed method.
