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2. Kill A Watt - Wikipedia

   en.wikipedia.org/wiki/Kill_A_Watt

   The Tweet-a-watt [13] is a hacked version of the standard Kill-A-Watt Plug in Power Meter. By piggybacking on the device's on-board LM2902N op-amp chip, the creator was able to get readings for voltage and current and transmit to a computer, which then sent this to Twitter via handle @tweetawatt. [ 14 ]

3. Home energy monitor - Wikipedia

   en.wikipedia.org/wiki/Home_energy_monitor

   A study by Hydro One using the PowerCost Monitor deployed in 500 Ontario homes showed an average 6.5% drop in total electricity use when compared with a similarly sized control group. Based on these results, Hydro One subsequently offered power monitors to 30,000 customers for $8.99 shipping and handling. [10]

4. Load management - Wikipedia

   en.wikipedia.org/wiki/Load_management

   In doing so, he utilized the ability of the system to monitor the speed of the watt power meter disc and, consequently, power consumption. This information, along with the time of day, gave the power company the ability to instruct individual meters to manage water heater and air conditioning consumption in order to prevent peaks in usage ...

5. Electricity meter - Wikipedia

   en.wikipedia.org/wiki/Electricity_meter

   The equivalent Economy 7 costs are 21.34p per kWh during the peak usage period with 7.83p per kWh during the off-peak usage period, and a standing charge of 18.90p per day. [28] Timer switches installed on washing machines , tumble dryers , dishwashers and immersion heaters may be set so that they only switch on during the off-peak usage period.

6. List of electrical and electronic measuring equipment

   en.wikipedia.org/wiki/List_of_electrical_and...

   Capacitance meter: Measures the capacitance component Current clamp: Measures current without physical connection Curve tracer: Applies swept signals to a device and allows display of the response Cos Phi Meter: Measures the power factor Distortionmeter: Measures the distortion added to a circuit Electricity meter: Measures the amount of energy ...

7. Net metering - Wikipedia

   en.wikipedia.org/wiki/Net_metering

   Time of use metering is a significant issue for renewable-energy sources, since, for example, solar power systems tend to produce most energy at noon and produce little power during the daytime peak-price period (see also duck curve), and no power during the night period when price is low. California, Italy and Australia has installed so many ...