Articles · Topic
Articles about Property Scale
19 articles across 1 section
Section
Self-Reliance
Biogas Digesters
Anaerobic digestion at property scale, and why hydrogen sulfide disables the sense of smell at the concentration where it becomes immediately dangerous. The feedstock threshold, gas conditioning as permanent infrastructure, digestate, and the confined space pattern that kills rescuers.
Biomass, Wood Gas and Heat Conversion
Turning what a property already grows or discards into power and useful heat. Eight guides covering feedstock assessment, thermoelectric modules, Stirling engines, combined heat and power, and the three higher-risk pathways covered under the understand-not-build standard.
Combined Heat and Power
Accounting for the reject heat that is most of the energy in any biomass generator. Reading the two efficiency figures correctly, sizing to year-round thermal baseload rather than electrical load, the seasonal mismatch, and the water hygiene obligations a preheat tank carries.
Generating Your Own Power
Track 3 of the Energy domain. Continuous power generation at property scale across six areas: solar, micro-hydro, wind, biomass and heat conversion, continuous-duty engines, and site-specific sources. Written for a property that intends to produce its own electricity as normal operation rather than for a household sizing backup.
Horizontal-Axis Turbines
The conventional small wind machine explained: lift rather than push, why three blades became standard, tip speed ratio, upwind and downwind rotors, yaw and gyroscopic loading, and the furling and overspeed protection that decides whether a turbine comes through a serious gale intact.
Is Your Biomass Worth It: Measuring What a Property Produces
The three feedstock streams a property can carry, measured separately and converted into kilowatt-hours. Sustainable woodlot yield against the household's own heating claim, the EPA screening threshold that rules manure out for most smallholdings, and the stove hours already being burned.
Is Your Site Worth It: Assessing a Wind Resource
The cube rule, wind shear and hub height, and the four ways to estimate a site's wind resource ranked from worst to best. Includes the Department of Energy screening equation worked end to end on a 12 foot rotor, the 30 foot clearance rule, and why a year of logging at hub height beats every shortcut.
Micro-Hydro and Water Power
The Hydro track of the property-scale Generation section. Eight guides on generating power from moving water, which unlike solar and wind runs continuously. Measuring head and flow, the three system configurations, turbine selection, civil works, load control, and the water rights and permits that decide whether any of it is lawful.
Small-Scale Steam
Biomass-fired steam power and the stored energy that needs no ignition source to release. Low water condition as the dominant failure mode, the ASME and jurisdictional framework that makes a homemade boiler a nonstandard vessel, and the attention the system demands.
Solar at Property Scale
The Solar track of the property-scale Generation section. Seven guides covering what changes when an array has to carry a whole property rather than supplement a house: worst-month sizing, storage measured in days, mounting, code, and winter. One worked example runs through all seven.
Stirling Engines
External combustion at property scale: the closed cycle and its regenerator, kinematic against free-piston architectures, the heat-to-power ratio that makes these heating appliances rather than generators, and the commercial record behind a thin market.
Thermoelectric Generators
Solid-state conversion of stove heat into direct current. Why a Peltier cooling module degrades from 80 degrees Celsius rather than failing at its solder melting point, why cold-side heat rejection decides output, honest wattage, and the power conditioning a variable source needs.
Towers and Maintenance
The tower decides how much a turbine produces and most of what it costs to keep running. Guyed, self-supporting and tilt-down structures compared, the land each needs, what a foundation actually resists, and the maintenance arithmetic across a twenty year life.
Vertical-Axis Turbines
How Savonius and Darrieus rotors work and the real difference between drag-driven and lift-driven designs. What vertical-axis machines are genuinely good at, the generator at ground level, lower tip speed and noise, and an honest examination of the claim that they suit turbulent low-altitude sites.
When Household Solar Stops Being Enough
How to tell whether a household has genuinely outgrown its solar system, the cheaper corrections worth trying first, and what property-scale generation actually asks in money, space and maintenance. Includes the case for staying where you are.
Why Most Homestead Biomass Disappoints
The four patterns behind abandoned biomass projects: feedstock counted optimistically, labour that recurs daily, reject heat with nowhere to go, and a thinner equipment market than it appears. Set against residential solar costs that fell 65 percent while biomass physics did not move.
Why Most Residential Wind Disappoints
Measured capacity factors against advertised figures, real installed cost per kilowatt, and the four failure patterns behind the gap between what small wind is expected to produce and what it typically does. Closes with the conditions under which it genuinely works.
Wind at Property Scale
The Wind track of the property-scale Generation section. Seven guides on small wind, opening with the honest position that it is the most oversold source on the site. Site assessment, why most installations disappoint, horizontal and vertical axis machines, towers and their maintenance burden, system control and braking, and the zoning that decides most projects before a turbine is ever chosen.
Wood Gasification
What a gasifier does and why the risk is structural: producer gas runs around 170 times the concentration at which carbon monoxide is immediately dangerous, with no odour to warn of a leak. Tar as the dominant failure mode, engine derating, and what qualified execution looks like.