Sovereignty Module: Harness the Forces
Complete Energy Systems: From Muscle to Electricity
Energy multiplies human capability. This campaign covers all energy sources from human muscle to electricity, with construction details for each system.
Chapter 1: Energy Sources Comparison
| Source | Availability | Power Output | Reliability | Cost | Skill to Build | Maintenance |
|---|---|---|---|---|---|---|
| Human muscle | Always | 75-100 watts sustained | 100% (when healthy) | Free | N/A | Food |
| Animal power (horse/ox) | If animals available | 500-750 watts sustained | High | Feed + care | Moderate (training) | Feed, vet, rest |
| Flowing water | Near streams/rivers | 100W - 100kW+ | Very high (24/7) | Moderate-high | High | Low-moderate |
| Wind | Open/elevated areas | 100W - 10kW+ | Variable (30-50% capacity) | Moderate-high | High | Moderate |
| Wood/biomass (heat) | Forested areas | 10,000-50,000 BTU/lb | High (if managed) | Low (labor) | Low | Harvest, process |
| Solar (thermal) | Sunny areas | Variable | Moderate (daytime only) | Low-moderate | Low-moderate | Low |
| Solar (photovoltaic) | Sunny areas | 100W-10kW+ per panel | Moderate (daytime only) | High | Low (install) | Very low |
| Biogas (methane) | If organic waste available | 500-5,000 BTU/cu ft | Moderate | Low-moderate | Moderate | Daily feeding |
| Steam (wood-fired) | If wood + water available | 1-100+ HP | High (when running) | High | Very high | High |
| Alcohol fuel | If grain/sugar available | 76,000 BTU/gal | High (if produced) | Moderate | Moderate | Production labor |
Chapter 2: Water Power
| Type | Head (ft) | Flow Needed | Output | Complexity | Best For |
|---|---|---|---|---|---|
| Undershot wheel | 2-6 ft | High flow, low head | 1-10 HP | Moderate | Flat terrain, large rivers |
| Overshot wheel | 10-30 ft | Low-moderate flow | 2-20 HP | Moderate-high | Hilly terrain, small streams |
| Breastshot wheel | 4-15 ft | Moderate flow | 2-15 HP | Moderate | Medium head sites |
| Pelton wheel (impulse) | 50-1,000+ ft | Low flow, high head | 1-100+ HP | High | Mountain streams, high head |
| Crossflow turbine | 3-200 ft | Low-high flow | 1-100 HP | High | Versatile, wide range |
| Ram pump (no electricity) | 3+ ft fall | Moderate flow | Pumps water uphill | Low-moderate | Water lifting only |
Overshot water wheel construction: 1) Survey site: measure head (vertical drop) and flow (gallons/minute). 2) Build dam/weir to create head. 3) Construct flume/penstock to direct water to wheel top. 4) Build wheel: diameter = 80-90% of available head. Width = based on flow. Buckets on rim catch water. 5) Axle and bearings (hardwood or metal). 6) Gear train to match speed to application. 7) Connect to mill, generator, or other machinery. Efficiency: 60-90%.
Chapter 3: Wind Power
| Component | Material | Size | Function | Notes |
|---|---|---|---|---|
| Blades (3) | Wood (carved) or sheet metal | 6-15 ft diameter | Capture wind energy | Airfoil shape critical for efficiency |
| Hub | Steel or hardwood | 12-18 inch | Connect blades to shaft | Must be balanced |
| Main shaft | Steel pipe or solid rod | 1-2 inch diameter | Transfer rotation | Bearings at both ends |
| Tower | Wood, steel, or guyed pole | 30-60+ ft | Elevate rotor above obstacles | Height = more wind = more power |
| Tail vane | Sheet metal or wood | 3-6 sq ft | Orient rotor into wind | Hinged for overspeed protection |
| Generator | Permanent magnet alternator | 500W-5kW | Convert rotation to electricity | Match RPM to wind speed |
| Furling mechanism | Spring + hinge | — | Protect in high wind | Turns rotor out of wind above set speed |
Power available: P = 0.5 × air density × swept area × wind speed³. Doubling wind speed = 8x power. Doubling blade diameter = 4x power. Tower height matters enormously — every 10 ft higher = significantly more wind.
Chapter 4: Solar Energy
| Application | Type | Output | Cost | Complexity | Best For |
|---|---|---|---|---|---|
| Water heating | Thermal (flat plate) | 30,000-50,000 BTU/day | Low-moderate | Low-moderate | Hot water (huge energy savings) |
| Space heating (passive) | Design (windows + mass) | Variable (free) | Free (design) | Low | All buildings (orient south) |
| Cooking | Parabolic/box cooker | 350-700°F | Very low | Low | Cooking without fuel |
| Food drying | Solar dehydrator | 100-150°F airflow | Very low | Low | Food preservation |
| Electricity | Photovoltaic panels | 100-400W per panel | High | Low (install) | Lighting, electronics, pumps |
| Distillation | Solar still | 1-5 liters/day per sq meter | Low | Low | Water purification (arid areas) |
Passive solar design: 1) Orient building long axis east-west. 2) Maximum glazing (windows) on south wall. 3) Thermal mass floor/wall behind south windows (concrete, stone, water barrels). 4) Insulate north, east, west walls heavily. 5) Overhang sized to shade summer sun, admit winter sun. 6) Result: 50-80% of heating from sun. Free. Permanent.
Chapter 5: Biogas
| Parameter | Specification | Notes |
|---|---|---|
| Feedstock | Manure, food waste, green plants | Mix types for best production |
| Temperature | 85-100°F optimal (mesophilic) | Insulate digester in cold climates |
| Retention time | 20-40 days | Longer = more complete digestion |
| Gas composition | 60% methane, 40% CO2 | Remove CO2 for higher BTU |
| Gas yield | 1 cu ft per lb of volatile solids | Varies by feedstock |
| Digester size | 50-200 gallons per cow equivalent | Scale to available waste |
| Daily gas (1 cow) | 30-50 cu ft/day | Enough for 2-3 hours cooking |
| Safety | Methane is explosive (5-15% in air) | Ventilate, no flames near storage |
Simple biogas digester: 1) Container (55-gallon drum, IBC tote, or concrete tank). 2) Inlet pipe (feed waste in). 3) Outlet pipe (remove digested slurry — excellent fertilizer). 4) Gas outlet (top, with valve). 5) Gas storage (inner tube, gas bag, or floating drum). 6) Feed daily with manure + water (1:1 ratio). 7) Gas available in 2-4 weeks. 8) Use for cooking, lighting, or small engine.
Chapter 6: Generators and Electricity
| Type | Power | Fuel/Source | Efficiency | Complexity | Best For |
|---|---|---|---|---|---|
| Permanent magnet alternator | 100W-5kW | Wind, water, pedal | 70-90% | Moderate (build) | Off-grid generation |
| Automotive alternator | 500W-1.5kW | Any rotation source | 50-60% | Low (repurpose) | Quick setup, available |
| Induction motor (as generator) | 1-10kW | Any rotation source | 70-85% | Low (repurpose) | Higher power needs |
| Thermoelectric (Peltier) | 1-50W | Heat differential | 5-10% | Low | Small electronics from fire |
| Hand crank | 5-20W | Human muscle | 50-70% | Low | Emergency, small devices |
| Bicycle generator | 50-100W | Human pedaling | 60-80% | Low-moderate | Lighting, charging |
Basic electrical system: 1) Generator (wind, water, or pedal). 2) Charge controller (prevents battery overcharge). 3) Battery bank (deep cycle, 12V or 24V). 4) Inverter (converts 12V DC to 120V AC if needed). 5) Wiring (properly sized for load and distance). 6) Loads (lights, tools, communication). Size system: calculate daily watt-hours needed. Size battery for 3 days autonomy. Size generator for average daily production + 20%.
Reference Card
- Water power: most reliable off-grid energy. Runs 24/7. If you have flowing water with 10+ ft head, build an overshot wheel. 60-90% efficient.
- Passive solar: free heating forever. South windows + thermal mass + insulation + overhang. Design decision, not equipment purchase.
- Wind: height matters more than blade size. Every 10 ft higher = significantly more power. Build tall tower. Minimum 30 ft above obstacles.
- Biogas: 1 cow's manure = 2-3 hours cooking gas/day. Simple digester from barrel + pipes. Feed daily, collect gas. Bonus: effluent is excellent fertilizer.
- Battery bank: deep cycle only (not car batteries). Size for 3 days without charging. Never discharge below 50%. Lasts 5-10 years with care.
- Wood gasifier: converts wood to combustible gas. Can run internal combustion engine on wood. Complex but proven (WWII technology). Emergency power.
- Alcohol fuel: distill from grain, fruit, or sugar. Burns clean in modified engines. 76,000 BTU/gallon. Renewable if you grow feedstock.
- Human power: 75 watts sustained. Bicycle generator = 50-100W. Enough for LED lighting, radio, phone charging. Always available. Never breaks down.