Do you have questions about our electricity saving system?
Watt Analytics analyses, forecasts and controls electricity consumption in real time using artificial intelligence and machine learning technologies. In concrete terms, this enables us to achieve significant improvements:
Questions about the energy meter
How do I find an electrician who will install the Watt Analytics meter for me?
Can I install the Watt Analytics meter myself?
Which meter should I buy? The iWattMeter or the iWattController?
The iWattMeter is the right choice if you want to measure and analyze your electricity consumption and you do not own a photovoltaic system.
The iWattController is the right meter for owners of a PV system. With the iWattController you can not only analyze your total electricity consumption, but also control your devices to optimize the self- consumption of your self-produced electricity.
My meter is not sending any data. What can I do?
Does the energy meter need to be maintained?
Where can I buy the meter?
Can I use the Watt Analytics software even if I buy the SmartPI from the manufacturer Enerserve?
Can I take the meter with me when I move?
What can be the reason and what can I do if the meter obviously shows wrong or negative measurement data?
If the meter displays wrong or negative measurement data, this can have various reasons. In this case, check the following 3 points:
- check the direction of energy flow: are the current transformers installed in the direction of the arrow? The arrow must point from the energy supplier to the consumer. Twisting the terminals will lead to a negative measurement result.
- Is the current transformer cable correctly connected to the meter according to the color code?
- Check that the installation of the consumer itself is correct. This can be checked with a multimeter.
Questions about the Watt Analytics System
How much power does the Watt Analytics system itself consume?
This question can be answered in two ways. How much electricity does Watt Analytics consume in your home and how much electricity does the company consume in total.
The power consumption of Watt Analytics in your home depends on the measuring device used. iWattMeter and iWattController are very economical measuring devices. The power consumption is approximately like that of an energy-saving lamp. Of course, you also must consider the power consumption of your WLAN and your mobile phone, but you will use that for other purposes anyway.
The total power consumption of Watt Analytics is not yet relevant in the current start-up phase. However, we are in the process of collecting relevant data with our cloud providers. As soon as we have reached a critical size, our next step will be to optimize our office infrastructure with Watt Analytics. You can read the corresponding field report on our homepage.
Is the total power consumption measured and evaluated per hour or perhaps even per minute?
The power consumption is sampled and analyzed 4x per second. We show you the measurement data in the web app – on the dashboard of your user account – and in the mobile app.
Watt Analytics does not recognize an electrical appliance. What can I do?
We are constantly expanding our analyzer. Of course, it may be that it cannot detect a certain appliance because it behaves differently from everything we have analyzed so far. Please try the expert training mode in the Dashboard in the protected area of the homepage. Maybe this will help you. Otherwise, please send us an e-mail with your problem and we will take care of it.
How much data is transmitted via the WLAN and does this affect my telecommunication costs?
We send a short data set to the Watt Analytics server 4 times per second. This has no impact on the performance of your Wi-Fi and is certainly covered by your basic free data allowance.
What data is collected through the Watt Analytics system?
The Watt Analytics Community can only be effective if we learn from the data of others and make our data available to other members of the Watt Analytics Community. Transparency in how we handle your personal or measurement data is very important to us. Find out more on our data protection page.
What are the compatibility requirements on my mobile phone, tablet or PC?
Watt Analytics works with all popular iPhones and Android phones. You can use the Watt Analytics app on all current iPads and Android tablets. A standard internet browser is sufficient for operation on your PC.
From what household size or what energy consumption is it worth buying a meter?
In our experience, Watt Analytics can reveal interesting savings potential even in a single household. Naturally, the potential savings increase with the size of the household. Watt Analytics can be run in single-family and multi-family homes. Watt Analytics can also bring about meaningful optimizations for small and medium-sized enterprises.
Is there a support or hotline that I can contact in case of complications?
We are currently still in the set-up phase. If you have a problem, please send us an e- mail. We will get back to you.
Is there a government subsidy for the purchase of a meter?
That is an interesting question. There are corresponding subsidy offers from the public sector on the relevant websites. However, we still must check these. If you yourself have experience with possible subsidies, we would of course be grateful for any information.
Can I deduct the cost of the meter from my taxes?
That is an interesting question. However, we still must check this. If you yourself have experience with tax deductibility on this topic, then we would of course be very grateful for any relevant information.
Questions about device recognition
From how many watts can the meter detect a device?
Our measuring device can detect and analyze devices with a consumption of 5 watts or more. Devices with a consumption of less than 5 watts are no longer detected.
Can all devices be registered with the teach-in process or are there devices that cannot be supported by the system?
Basically, three categories of devices can be distinguished.
Devices that have switch-on and switch-off processes with a fixed number of watts can be taught-in well. This category of appliances accounts for about 80% of consumption. This includes the following appliances, among others:
LED and halogen lamps, light bulbs, kitchen appliances such as ovens, hobs, dishwashers, refrigerators, freezers, coffee makers, toasters, steam cookers, hoovers, washing machines, dryers, heating systems, circulation pumps, drills, circular saws, compressors, grinders, garage door openers.
Appliances with a consumption between 5 and 15 watts. These devices can generally be taught in. Since these devices are usually very numerous in a household (e.g., light bulbs and chargers) and they hardly differ from each other in their active and reactive power, our system cannot always reliably assign the corresponding pattern recognition to the respective device. If two very similar devices are connected to the same phase, confusion may occur. If two very similar units differ by 10% or are connected to different phases, the unit recognition works. For an unambiguous assignment, a difference in consumption of approx. 10% is necessary so that our analyser can distinguish the units from each other.
This category of devices includes, among others:
NAS, DECT phones, printers, UPS, switches, receivers, SAT distributors, chargers for tablets and mobile phones, electric toothbrushes, various routers and gateways for the different applications, e.g., Fritz Box or Coqon heating control, doorbell system, radio (also old tube radio).
Devices with dynamically fluctuating consumption. These devices can be taught-in, but false detection can occur if other devices with similar consumption are connected to the same phase. This appliance category accounts for approx. 10% of the consumption. These include, among others, kitchen appliances, PCs, monitors, and TVs.
How does a training process take place?
You have to switch the device on and off 3 times and mark the consumption or confirm the device on the mobile app after switching it on. Watch our video on how to pair devices in the Watt Analytics app at the following Youtube-Link.
Do I have to teach all the devices individually and one after the other in the app?
Yes, it makes sense to teach each device individually in the app so that there are no overlaps during pattern recognition. This increases your device recognition rate.
What happens to units that cannot be taught? Are they nevertheless considered in the analysis?
a, all units that have not yet been taught or cannot be recognized by the system are shown as "Unknown" in total.
Is there a way that I can plug an intermediate plug into individual devices that cannot be taught, such as my PC/NAS (Network Attached Storage) etc.?
We are planning to implement this possibility this year.
Can I clamp a reader (current transformer) around the cable of individual fuses so that I can read out my boiler room and my office completely, for example?
Yes, that is possible. The 3 readers are intended for the 3 phases, but you can also attach the readers per circuit.
If you want to equip e.g., 9 circuits, you need 3 iWattMeters with 3 readers each. We do not currently offer any expansion modules for this.