Last date for submission of paper: unknown; Contact person: Energy Transitions Research at the University of Cambridge; Emerging social trends such as the widespread deployment of small-scale solar installations, the adoption of electric vehicles and changing patterns of power generation are putting immense pressure on the UKs electrical grid infrastructure. In order to invest efficiently and minimise consumer bills, the Distribution Network Operators (DNOs) are in a race to upgrade, maintain and replace infrastructure as our demand for energy grows. Under an Innovate UK grant, 42 Technology opened discussions with 5 DNOs to discover why smart metering of the grid is not being widely adopted. This revealed that the major factors came down to the cost of meters and long disruptions in service during installation. To overcome these problems 42 Technology designed and tested a novel retrofittable low cost secondary substation monitor called