Settings

Price data

Entso-E API key for price data

Day-ahead price data is fetched from transparency.entsoe.eu, a service operated by Entso-E. Entso-E is an association of European association grid operators.

To read data from Entso-E transparency API you need a free API key. To get a key:

1. Register first on the ENTSO-E transparency platform
2. Request an API key by sending an email to transparency@entsoe.eu (press this link) with “Restful API access” in the subject line. In the email, state your registered email address. You will receive an email when you have been provided with the API key. Enter the new API key to the field "EntsoE API key". If you control multiple devices you can use the same key on all devices.

Area code

Set your price area from the list of available price areas. Some European are divided into multiple price areas.

Energy Forecast

Forecast location

Select the nearest available location for 24 hours solar power forecast. Forecasts are currently available only in Finland.

Panel peak power (W)

Panel peak power in watts to scale solar forecast from Finnish Meteorological Institute.

Daytime baseload (W)

Estimated daytime baseload (consumption) in watts. This used to estimate solar "overproduction".

Grid Energy Metering

Optional grid metering helps in optimising the use of self-produced electricity. Requires supported energy meter.

Energy Meter Type

Meter type: Shelly 3 EM, HAN P1 Serial, HAN P1 Proxy (HomeWizard)

GPIO (RXD)

GPIO number of the serial input (HAN P1 Serial only)

IP Address

IP address of a Wifi connected meter/proxy

IP Port

Typically 80 for Shelly 3 EM and HAN P1 Proxy

Energy Meter Password

Optional password of the energy meter. (Shelly 3EM only)

Read about energy meter configuration

Energy Production Metering

Optional production metering reads your solar inverter.

Inverter Type

Some SMA and Fronius models supported.

Inverter IP Address

IP address of the inverter

Inverter IP Port

Typically 80 for Fronius, and 503 for SMA

Inverter IP ID

Typically 3 for SMA ModBus.

Load Management

Load management available is from version 1.1. Read about the principles of Load Management.

Load Management active

Phase Count

Choose how many phases there are in your electricity connection, 1 or 3

Max Phase Current (A)

Maximum allowed current per phase, e.g. 25 if the main fuses are 25A.

Re-switch wait time (minutes)

How long time system wait before re-switching loads after overload.

InfluxDb Server

Define optional server for history time series reporting and analysis. InfluxDB is an open-source time-series database where Arska can store history data for reporting and analysis. See instructions

Localisation

Change time zone and language. The program is mainly showing English texts regardless of your choice but there are some Finnish instructions on the channel templates.

Network

Change WiFi network and password here. Refresh the list of wifi networks with 🔁 button.

Change default password arska (user id is admin) here to your own secret password. Until you have done it, the admin page is automatically opened with the warning. To change admin password type in in the both fields. Please note that this is only an additional protection for your Arska device. Protect your local network with a proper router firewall and other appropriate measures.

System administration

Backup and restore

Backup configuration

Download current settings to a file. Take a backup always before system update.

Restore configuration

Upload settings from a file on your computer. Could be used e.g. if settings are cleared in a system update.

System Update

• 🔁 Gets available software version (can take a while).
• Select version you want to update to from the list.
• Press "Upgrade" button on right to start.  

Advanced settings

Maintenance actions are special tasks used in configuration and troubleshooting.

• Scan sensors - Scans available temperature sensors. Use it after adding or removing sensors.
• Restart - Restart the controller.
• Reset settings - Clean all settings and start with default settings.