The book introduces a new concept of Fractal Tomograph (FT) to study large and small
perturbations of power grids. A mathematical phrase called Active Network Twins (ANT) is
discovered which bears astonishing similarity with the human DNA. ANT forms the backbone of
analysis. Lineflows and load voltages are compositions of ANT called fractals which constitute
tomographs. First three chapters discuss these new concepts. A remarkable feature is that a
minute observation of tomograph is sufficient to detect a malaise in the past present or
future of the grid. Editing like in genes to control flows and voltages is explained in
chapter 4. The baffling loop flows in the US-Canada region a metropolitan blackout in India
and outages in Nepal are illustrated with notional networks. Causes are crisply identified
(chapters 5 and 6). Frequency rendezvous and blockchain approach to electricity costs (chapters
7 8) are radically new perspectives. The book is useful for grid controllers and researchers.
