Random notes for the future

This page does not appear in the site index. It contains notes and information which may appear somewhere on the site in future. Items here require further investigation. Some items are waiting on availability in NZ. Items may come and go on this page as they are integrated into other parts of the site or not.

TED 5000

The Energy Detective TED 5000 is not yet available for the 230V/50hz Australia/NZ and European markets.

From the TED FAQ:

Q.  Will TED work with 230v 50Hz Service (service generally found outside of North America)?

A.  Not at this time. We are working on a 230v50Hz system that should be available in the Nov/Dec 2010 timeframe.

There is a TED 5000 FAQ with an earlier date but this is most likely deprecated.

TED 5000 uses the Zigbee standard to communicate between the gateway and an in home display.

Prodigit OEM instruments

Prodigit USA provide small power meter modules which can be incorporated into existing equipment or integrated into new manufactured items: http://www.prodigitusa.com/PowerMonitorsPowerControllers.htm


USB controlled power board. Available in Australian market.

Future Switch

FutureSwitch - remote outlet system. Available in Australian market. NZ retailer Righthouse.

Manuals: http://www.futurerange.com.au/Support.aspx


Review: http://forums.energymatters.com.au/living-green/topic581.html


Cached page at FM works: http://webcache.googleusercontent.com/search?q=cache:YsIT6DE87KwJ:fminnovations.com.au/future-switch+futurerange.com.au&cd=6&hl=en&ct=clnk&gl=nz

60 channel system. 1 x remote to many wall sockets. 1 remote per group of wall sockets. Single channel per remote.


http://forums.energymatters.com.au/living-green/topic581.html (compares power to x10 system)

http://fminnovations.com.au/future-switch (diagrams and photos)

Stated power consumption - Off mode: 0.6W, On Mode: 0.9W


Integrated hardware and web based package for environment sensor monitoring.  


Tracking and optimisation

http://energyoptimiser.ecoinnovation.co.nz/ - includes renewable potential.

WaiTek Shower Monitor

This is not a simple shower timer. It accurately monitors and displays real time shower temperature and water flow. An alert is sounded when energy use and water consumed reaches a level preset by the user. Waitek have comprehensively market tested this product internationally. Waitek are now looking for serious and capable entrepreneurs and manufacturers to take this technology to market. - http://www.waitek.co.nz/index.html

Hot water energy loss calculation

Hot water timers / standing loss references

"The storage losses from the hot water cylinder account for 30-40% of the total electricity consumption for hot water (BRANZ HEEP Reports,2005). During the night, even when the water is not being used the tank is cooling down and reheating several times."

"Any storage cylinder cools down at a rate related to the difference between the temperature inside the tank, and the temperature surrounding the cylinder (ambient temperature). However, the amount of heat lost per hour is not constant. The greater the difference between these two temperatures, the more energy lost per hour. So a cooler tank loses heat slower that a hot one does. An electric element, however reheats this water at a constant rate. So heating from 20ºC to 40ºC takes the same time as 40ºC to 60ºC. But to cool from 60ºC to 40ºC will take much less time than 40ºC to 20ºC"

Note: BRANZ HEEP Final Report considers standing loss in Appendix 10 page 340 - The final report uses more sophisticated techniques to derive better data for statistical analysis.

"Energy End-Use in New Zealand Houses" 
Albrecht Stoecklein, Andrew Pollard, Sarah Bishop

"Domestic hot water heaters consume a large proportion of the total electricity. An average of 40% of their energy consumption is used to recover standing heat losses from the cylinder. There were no apparent patterns found linking the amount of standing losses with either cylinder size, cylinder age or thermostat set point. The correlation between number of occupants and the amount of consumed hot water energy is 0.76. The total energy for hot water heating (excluding appliance heating like dishwashers, washing machines etc.) contributes between 20% and 60% to the peak demand." (1998)

Household power factor correction


Equal Networks

Wifi ac power monitor monitor (SME rack monitoring market probably)


Discussion about power factor and sampling speed: