Corrections log
Every accepted reader correction, public, dated, and credited. Fixes from the guide's own editorial and adversarial review passes are logged separately, figure by figure, in the updates and in each claim's revision history on the register. Spotted an error? Use “Suggest an edit” at the end of any chapter; accepted fixes appear here.
The cost is ecosystem immaturity: DC breakers, DC-rated busways, >1 kV-DC UL listings, and SST production are all still ramping in 2026
Chapter 4.1 now covers the 380–400 VDC deployment history: LBNL's 2006 demonstration, the 2012 ETSI and ITU-T interface standards, the EMerge 380 VDC standard, ABB's Zurich plant and NTT's rollout. The "still ramping" verdict is now limited to the 800 V class and solid-state transformers, and the earthing section credits the existing midpoint-grounding practice. Chapter 4.7 and Appendix A were updated to match.