Avoided energyDOCDOCUMENTED
Whole-home weatherization
Air sealing, insulation, duct repair, equipment maintenance, and an energy audit often reduce demand before new generation is even considered.
Open DOE: Why energy efficiency mattersEnergy Cost Lab
Sources, storage, savings, and claim audits.
There is no credible energy source that creates net energy from nothing. This desk separates energy sources, energy carriers, storage, efficiency, and extraordinary claims so each can be measured on its own terms.
Read the Evidence
From the tower to the test bench.
Tesla history
Wardenclyffe: Wireless Power vs. Free Energy
What Tesla's tower was meant to transmit, what the historical record establishes, and why wireless delivery is not energy generation.
Read the evidence →Claim auditStanley Meyer's Water Buggy: An Energy-Balance Audit
Read Meyer's fuel-gas patent, separate hydrogen from an energy source, and see what a convincing independent test must measure.
Read the evidence →Measured researchAmbient RF Harvesting: How Much Power Is Available?
Compare published RF-harvesting and backscatter experiments, calculate a conditional power budget, and distinguish sensors from household loads.
Read the evidence →A Worked Example
What does one avoided kilowatt-hour save?
Power (kW) × time (hours) = energy (kWh)
A 100-watt reduction sustained for 10 hours avoids 1 kWh. At an illustrative electricity price of $0.20/kWh, repeating that saving every day avoids $73 per year. These are arithmetic assumptions, not a measured household result or a local price quote.
A $200 improvement delivering that saving would have a simple payback of about 2.7 years before maintenance, financing, and changes in rates. Replace every assumption with your measured consumption and utility tariff. Fixed charges usually remain.
For a generator, compare net usable output after its own consumption. For a battery, include charging losses. For a heat pump, separate heat delivered from electricity consumed: moving environmental heat is not creating energy from nothing.
01
Cut demand first.
Every kilowatt-hour avoided through envelope, equipment, and control improvements is energy that does not need to be produced or stored.
02
Name the source.
Sun, moving water, wind, fuel, waste, and the grid are sources or inputs. Electricity, batteries, hydrogen, and flywheels move or store energy.
03
Show the meter.
Claims need calibrated input and output measurements, a stated boundary, uncertainty, operating time, and independent replication.
Best Starting Points
Ways to lower energy costs with a documented basis.
Start with the option that matches the building, site resource, utility tariff, budget, and local code. A good project has a baseline bill and a defined measure of success.
Efficient heating and coolingDOCDOCUMENTED
Heat pumps
A heat pump moves heat instead of creating it through resistance or combustion. Savings depend on climate, prior equipment, electric rates, and the building envelope.
Open DOE: Heat pump savingsGenerationDOCDOCUMENTED
Rooftop solar PV
Sunlight is the source. Evaluate roof condition, shading, local production, financing, incentives, utility tariff rules, and lifecycle maintenance before calling it economical.
Open DOE: Homeowner's guide to going solarShared generationDOCDOCUMENTED
Community solar
A practical route for renters, apartments, and shaded or unsuitable roofs where a subscription or ownership share can earn bill credits.
Open DOE: Community solar basicsLower-cost operationDOCDOCUMENTED
Time-of-use shifting
Shift flexible loads such as EV charging, water heating, laundry, and pre-conditioning to lower-cost periods only when the local utility tariff supports it.
Open DOE: Demand response and time-variable pricingStorage and resilienceDOCDOCUMENTED
Solar plus battery
Solar produces electricity; a battery stores and shifts it. The system can improve outage resilience and tariff management, but a battery is not an energy source.
Open DOE: Solar energy and storage basicsRecovered energyDOCDOCUMENTED
Waste-heat recovery
Recover usable heat from ventilation, hot-water drains, refrigeration, or industrial processes instead of discarding it. Best opportunities are site-specific.
Open DOE: Whole-house weatherizationConditions Apply
Real technologies that only work in the right setting.
These deserve documentation, but not blanket recommendations. Measure the resource and the constraints before pricing a system.
Site-specific generationDOCDOCUMENTED
Microhydro
Potentially powerful where the resource truly exists year-round. It is not a universal home-energy option and must be designed around a measured site resource.
Condition: Requires dependable flow, adequate head, permitting, and ecological review.
Open DOE: Microhydropower systemsSite-specific generationDOCDOCUMENTED
Small wind
A real technology in the right landscape. Rooftop or urban installations often perform poorly because turbulent wind is not a useful wind resource.
Condition: Requires measured wind resource, tower clearance, space, zoning, and a maintenance plan.
Open DOE: Small wind guidebookWaste-to-energyDOCDOCUMENTED
Anaerobic digestion and biogas
Organic material can produce a combustible gas through managed digestion. It has real engineering and safety requirements and is generally not a backyard-home solution.
Condition: Best matched to farms, wastewater treatment, or dependable large organic-waste streams.
Open DOE: Waste-to-energy overviewResearch and Niche Uses
Useful on a narrower scale than the marketing suggests.
Ambient harvesting and hydrogen are legitimate engineering topics when their inputs, scope, efficiency, and operating constraints are stated plainly.
Ultra-low-power harvestingEXPEXPERIMENTAL
Ambient RF, thermal, vibration, and indoor-light harvesting
Useful for selected sensors and low-duty-cycle electronics when the ambient source is measured. It is not a replacement for household electricity, vehicles, heating, or grid power.
Open Ambient harvesting studies and measured outputsEnergy carrier and storageDOCDOCUMENTED
Green hydrogen
Electrolysis uses external electricity to separate water into hydrogen and oxygen. It can be valuable for storage and industry when that input is clean and economical, but water itself is not the fuel source.
Open DOE: Hydrogen production by electrolysisClaim Audit Archive
The water buggy story belongs beside the measurements.
Historical claims can be interesting without becoming engineering conclusions. The archive keeps demonstrations, patents, legal reporting, and extraordinary assertions separate from independently measured performance.
Claim auditSPECSPECULATIVE
Stanley Meyer water-fuel-cell dune buggy
Meyer claimed an on-board device could split water and provide fuel gas for a dune buggy. A moving demonstration is not an energy balance. Any evaluation must meter every electrical and chemical input, gas output, engine output, and possible hidden energy path.
Open Meyer patent recordClaim auditSPECSPECULATIVE
Over-unity and self-running generators
A claim that a device produces net energy without an accounted source must be tested as an extraordinary measurement claim, with calibrated instruments and an independently repeatable protocol.
Claim auditSPECSPECULATIVE
Aether extraction and atmospheric-electricity claims
Atmospheric and ambient fields can be measured, but a field measurement is not evidence of household-scale harvestable power. Compare net power density, duty cycle, and all input paths.
Open Open the aether research paperClaim auditSPECSPECULATIVE
Earth batteries and hydrogen-on-demand car kits
Separate corrosion chemistry, conventional electrolysis, and externally supplied electricity from claims of self-sustaining propulsion or unlimited output.
Claim auditSPECSPECULATIVE
Permanent-magnet motor claims
Magnets can exert forces and form useful machines, but a permanent-magnet arrangement is not established as a continuous net-energy source without a measured energy input or material depletion pathway.