DOE Contracts Guardtime/Siemens/PNNL/TVA for Blockchain Cybersecurity Solution

> With Guardtime’s distributed and cryptographically sound integrity solutions combined with PNNL’s next generation transactional energy delivery infrastructure we enable next generation security and integrity while allowing for increased efficiency and reliability for both energy users and energy producers.

Is the above quote just buzzwords and marketing material or is there really something to it? Is there anyone that is knowledgeable on blockchain that would be able to elucidate on how specifically blockchain can help in ways that are different/better than our current industry-tested solutions? I'm not too knowledgeable on blockchain, and I have a hard time seeing the reported value of it for electric utility grid application.