andrew_richards-national_grid_perspective.pdf
99.9999% Generation Supply Distribution: 132kV & lower 3 Space Weather in National Risk Register 4 Key Historic Evidence ◼ 1859 Carrington Event: Largest known storm ◼ 1921 New York Railroad Storm: Damaged equipment and fires ◼ 1940 Easter Sunday Storm: First Power Grid effects ◼ 1989 Quebec Blackout