Each guide answers one question directly, works the numbers from the same data the calculators use, and ends at the calculator that runs your own figures. The first guides below follow the strongest search demand in the 2026-10-19 Search Console audit; the plan that follows merges the next guides from issues #750 and #692 onto this one hub.
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Extension cord gauge / voltage drop
How extension cord gauge and length decide voltage drop, with worked numbers for a 1,500 W heater at 50 ft and 100 ft, wire resistance and ampacity tables, and the 3% / 5% drop limits.
Why this guide: Query 'extension cord gauge calculator' at position 63.7 (11 impressions); the calculator page itself drew 23 impressions at position 52.8.
Read the guideGenerator sizing, fuel usage, and runtime
How generator fuel use is actually calculated — load factor, burn rate per kWh, and the cold, altitude, and biodiesel adjustments — with worked numbers from the site's own generator presets.
Why this guide: The fuel-usage calculator is the site's most-impressed page (28 impressions, position 20.2); 'generator fuel consumption calculator' sits at position 5.6 on 14 impressions and 'backup generator calculator' at position 10.2.
Read the guideHome appliance energy use and cost
The watts × hours formula behind every appliance calculator on the site, a worked day of appliance use from the site's own presets, and why always-on loads cost more than big occasional ones.
Why this guide: The home-energy-appliances category hub drew 13 impressions at position 20.6, with 'appliance energy calculator' and its variants ranking between positions 34 and 61.
Read the guideOne hub, one queue. These guides are planned — from #692 (the first question-led guides, part of epic #680) and the remaining #750 demand clusters — and each links its calculator today.
How long will a battery run a refrigerator?
Refrigerator backup runtime (#692) · First tranche of the #692 plan (epic #680); sequenced after the #750 demand-led guides on this hub.
What size generator do I need for a well pump?
Well pump generator sizing (#692) · First tranche of the #692 plan (epic #680); the generator fuel guide above already links its calculator.
How much energy does EV charging lose as heat?
EV charging losses (#692) · First tranche of the #692 plan (epic #680); sequenced after the #750 demand-led guides on this hub.
How much power does a tiny house need from solar?
Tiny-house solar (#750) · Demand is real but small so far (4 impressions, position 22.8); next #750 tranche after the three live guides.
How much power does a farm or greenhouse need — and what backs it up?
Farm / agriculture power (#750) · The category page drew 8 impressions at position 53.8 (mostly a Persian-language greenhouse query), so the English guide is sequenced after the higher-demand clusters.
How far will an e-bike, e-scooter, or mobility scooter actually go?
Personal mobility range (#750) · The category page drew 4 impressions at position 53.0 with no English question-led query cluster yet; named here so the cluster is accounted for, and rebuilt once demand firms up.