Every guide is backed by certified engineering spec sheets, KaTeX mathematical proofs, and real-world off-grid analysis.
Comprehensive engineering guide to solar array lightning protection. We analyze direct strike interception (NFPA 780), inductive surge loops (Faraday's Law), earth ground impedance (<25 Ohms), and Type 1 vs Type 2 DC SPDs.
Authoritative engineering guide to running MIG/TIG welders and plasma cutters on off-grid solar. We benchmark transformer inrush spikes, IGBT inverter power factors, high-frequency arc damage prevention, and battery C-rate sizing.
Authoritative engineering safety guide to lithium battery thermal runaway containment. We analyze LiFePO4 vs NMC decomposition chemistry, hydrogen off-gassing explosion risks, condensed aerosol fire suppression (Stat-X), and NFPA 855 enclosure deflagration venting.
Authoritative engineering guide to charging electric vehicles directly from high-voltage DC solar arrays. We calculate round-trip conversion losses, DC-to-DC buck-boost topology, CCS/NACS digital handshakes, and bidirectional V2H vehicle-to-home backup.
Authoritative engineering guide to running cold-climate heat pumps on off-grid solar. We calculate locked rotor amps (LRA), soft starter surge reductions, COP degradation curves, and resistance strip lockouts.
Authoritative engineering guide to integrating micro-hydro turbines with off-grid solar. We calculate head loss, Pelton wheel sizing, and mandatory 48V diversion dump load controllers.
Authoritative engineering guide to winterizing off-grid solar water systems. We calculate heat tape battery draw, stop-and-waste gravity drain valves, pitless adapters, and sub-zero wellhead insulation.
Authoritative engineering guide to sizing off-grid solar systems for pond aerators and lake circulation. Learn compressor CFM physics, depth hydrostatic pressures, day vs 24/7 battery sizing, and airline freeze protection.
Forensic engineering analysis of uncertified immersion water heater recalls, electrical shock hazards, and fire risks. Learn proper metallurgy, grounding bonding, and safe DC element selection for off-grid tanks.