Power Manager (StrømKontroll)

  • Updated

Power Manager is a service from Futurehome that optimizes the power consumption of selected devices (loads), based on the spot price and grid tariffs, in order to reduce the total energy cost, without compromising the household's comfort or needs. The optimization is based on information about the household's behavior and needs, which is entered into the Power Manager panel.

Note that this is version one of the service.

Requirements

Latest update of Smarthub and Futurehome app. To update Smarthub, go to Settings settings.svg → Household → Hub Settings → Update Software.

  • Futurehome app: ≥ 7.4.15
    Energy guard: ≥ 2.0.0
    Zigbee: ≥ 2.1.3 

Note: For this service to work, you MUST disable all automations based on spot price and/or power that affect the devices you add in the Power Manager.

Supported devices

Futurehome/Connecte Thermostat*
Futurehome/Connecte 16A puck relay
Futurehome HAN-sensor**
Høiax waterboiler
Easee car charger
Zaptec car charger

 

*NB: To use Futurehome/Connecte Thermostat, the service needs to know the power effect on the thermostat. If it has not been entered by you or an electrician, this must be done. Press this link to see how to add this. Scroll to "Power measurement".
**Futurehome HAN gen. 1 is not yet supported- click on the links to identify them.

This list with devices approved for the Power Manager will be expanded.

Set up

  1. You will find Power Manager under theenergy.svgEnergy tile on the dashboard → The lightning icon energy.svg in upper right corner. 
    Start with activating the service.
    Energy.svg     Click-PM.svg     Aktiver_Str_mKontroll.svg

  2. Set your desired threshold on kWh. It is important to have a conscious relation with one's consumption. If you often use 15kW an hour, it will be difficult to push to a maximum of 5kW.
    Grenseverdi.svg

    Tips:

    - Consumption in winter is often higher than in summer.
    - You can find historical consumption at www.elhub.no
    - Rather start with too high a value than too low.
    • Step 1 0-2 kW
      Step 2 2-5 kW
      Step 3 5-10 kW
      Step 4 10-15 kW
      Step 5 15-20 kW
      Step 6 20-25 kW
  3. Now you have to choose which devices to be switched on/off and adjusted in this optimization. If your devices do not appear, double check the list of supported devices at the top of this article and double check that the Smarthub is up to date. The more devices and the more power that is selected, the better the service will be. Also remember that the total power of the devices selected affects how much can be used to get below the maximum limit of kW per hour set under point 2.
    Enheter.svg

  4. The next step is to choose which price area you are in. If you are in doubt, you can choose "zip code" and enter this manually.
    Prisomra_de.svg

  5. "Comfort schedule" - here you select which hours and days of the week you want comfort to be prioritized over savings. An example of this could be from 07-09 and 18-22 on weekdays. Remember: The comfort schedule only adjusts heating devices, not water heaters and car chargers. The temperature outside comfort time will be set to 18 degrees (cannot be changed in this version), while the comfort temperature is 22 degrees. (If you want to change the comfort temperature please check the manual, linked here, scroll to "Advanced settings" and see point number 8)
    It is recommended to set a longer comfort time at the start and rather reduce this as you see that the optimization is working.

    komfortplan.svg

  6. Based on the comfort schedule, you must also select a warm-up time. This will activate the heat for the given number of hours before the comfort plan kicks in, from 18 degrees to comfort temperature. With comfort time from 07-09 and a heating time of 2 hours, the heat will turn on at 05 so it reaches the comfort level when the clock strikes 07.
    Remember: This varies from home to home, depending on which heating source is used. For example heating cables in concrete take significantly longer than heating foil.
    Oppvarming.svg

The settings on this page are saved continuously, so there is no need to save during the process or when making changes. When you are done configuring, the Power Manager service is live. 

How does this work?

Optimization based on consumption

Estimated total consumption for the current hour (kWh) is calculated based on historical consumption in the current hour and algorithms for expected consumption in the remaining time in the current hour.

If the expected consumption will exceed the threshold that has been set, available devices will be "switched off" until the expected consumption for the current hour is below the threshold.

Loads that are "switched off" are rotated every 10 minutes - the highest power is switched off first, then the second highest, etc.

The algorithm for expected consumption in the current hour is calculated with a 5% buffer against a set limit value - e.g. estimates towards 19 kWt if the limit value is set to 20kWt.

Optimization based on spot price

Power Manager optimises based on the spot price by using the 12 cheapest hours (50% percentile) of the day for water heaters and electric car chargers.

For temperature, the comfort period and the heating period that have been set will be governing, and not the spot price.

  • You need at least one HAN sensor from Futurehome connected to be able to use the Power Manager service. With only the HAN sensor connected, you will receive information when you exceed the limit set in kW per hour, but the Power Manager service will not be able to control any of your devices to avoid exceeding the limit.

    With the HAN sensor and at least one other connected device (thermostat, water boiler or electric car charger), the Power Manager service will both optimise the unit against the spot price and set the limit for kW per hour (grid rental).

    The more devices connected and the more power values (kW) entered in the Power Manager panel the better performance of the Power Manager service.
  • By using the Power Manager service, you will save on your electricity bill in three ways:
    1. By shifting the electricity consumption of larger loads, such as the water boiler and electric car charger, to times when the electricity is cheaper.
    2. By reducing simultaneous consumption and thereby reducing grid rent.
    3. By reducing your consumption by lowering the temperature when you do not need a comfort temperature.
    How much you can save depends on several parameters - which price area the home is in, which supplier you have and, of course, how much electricity you use and what you use it for. Find out how much you can save with the power saving calculator.
  • Installation and pricing of the Power Manager package is done by your local electrician. Go to strømkontroll.no to ask for an offer from your local electrician.

    By the installation of the Power Manager package, you will have 35% of the costs covered, both for the Power Manager package and the actual installation of ENOVA. If you are going to install, or have already installed, a smart electric car charger within the last 20 months, this investment will also be included in the 35% support from ENOVA.

    Read more about it on ENOVA's website, under Smart Power Management (Smart Strømstyring).
  • To get the greatest possible effect from the Power Manager service, you need to have a spot price agreement with your electricity provider, then you can optimise both against the spot price and against the grid rent.

    However, the service works even if you do not have a spot price agreement with your electricity provider, as Futurehome will still optimise your consumption against the grid rent you pay. By doing this, you will probably be able to reduce 1 to 2 steps in the step model for grid rental, depending on the total kW of the units that you enter in the Power Manager panel. For example, if you go from the highest hourly consumption of 15 kWh to 9 kWh (two steps) a month at Glitre Energi, this will amount to NOK 6,780 a year in saved grid rent. Reducing from 10 kWh to 9 kWh (one step) a month will amount to NOK 4,185 a year in saved grid rent from the same grid provider.
  • Optimisation based on total consumption per hour overrides optimisation based on the spot price. This means that even if the price is low, the limit set for consumption of power per hour will not be exceeded. Optimisation against the spot price is updated every full hour, while optimisation against consumption of power per hour is controlled continuously.
  • No, but this is something we are working on for the next version. We recommend that you switch off the relevant device(s) in the Power Manager panel if you need, such as the thermostat(s) or electric car charger in this case. Then the rest of the optimisations will work, even if some of the devices are switched off. However, remember to switch the device(s) back on in the Power Manager panel when you want them to be optimised again.
  • You have to update both the app and your Hub to the correct version.

    You can update the app via the App Store for iOS devices or via Google Play for Android (search Futurehome).

    To update the Hub open the Futurehome app and go to Settings settings.svg → Household → Hub settings → Update software.

    Version requirements for the Power Manager service are:
    • Futurehome app: ≥ 7.4.15
    • Energy guard: ≥ 2.0.0
    • Zigbee: ≥ 2.1.3

Was this article helpful?

1 out of 1 found this helpful

Have more questions? Submit a request

Comments

0 comments

Please sign in to leave a comment.