How to Evaluate Electricity Savings Claims

For any device or guide, ask: what is the measured input, the measured output, over what duration, and who independently verified it? If any of the four is missing, the claim is marketing, not evidence.

Red flags: 'up to X%' with no baseline, peak output quoted without input, 'free' or 'over-unity' energy, exaggerated savings that ignore your actual usage, and appeals to suppressed technology or famous inventors.

Plug the device into a power meter and compare input to output over real time. For a guide, verify whether the finished build can even reach the claimed loads. Your own meter beats any testimonial.

A savings claim only means something relative to what you already pay. Convert it to kWh and dollars on your own bill. '80% off' a tiny load is trivial; '80% off your whole bill' is almost certainly false.

Many digital products carry a 60-day refund policy through the payment processor. If a claim cannot be verified, use the window rather than hoping. Keep records of your purchase and requests.