Helen Smart Electricity
A one-year or two-year fixed-term electricity contract that offers you price stability. By steering your electricity usage, Helen Smart Electricity offers the opportunity to impact the amount of your electricity bill positively.
Price stability and adjustability
Helen Smart Electricity is an electricity contract that allows you to combine the benefits of fixed-priced and hourly priced electricity. The price of Helen Smart Electricity is composed of a basic component, which goes up or down depending on whether you use electricity at a time when the price is high or low. Helen Smart Electricity brings stability to your electricity contract, and it also allows you to benefit from shifting electricity consumption to more favourably priced hours.
When you choose Helen Smart Electricity, register to the free Oma Helen service. In Oma Helen, you can monitor your electricity usage and actual invoiced prices, and you will get all information of any changes in prices and contracts. Oma Helen will help you plan your electricity usage towards low-cost hours. With the help of Oma Helen, you can also and get reminders about high and low hourly prices. Download Oma Helen from your app store or log in to the service on the browser.
Contract information
- 12 or 24 month fixed-term contract
- Fixed price for the basic component throughout the whole contract period
- Production mix of electricity produced in Finland: nuclear power 18%, fossil sources 70%, renewable sources 12% (2022)
- Includes electrical accident insurance for the whole family
- The prices below include VAT 24 %.
- Terms of Contract
Select contract length
Composition of the price of Helen Smart Electricity
The price of the Helen Smart Electricity contract consists of the basic component, impact of usage, and a monthly basic charge.
The price of the basic component is determined based on the price on the day of the contract's signing, and it remains the same throughout the entire fixed-term contract period.
The impact of usage reduces or increases the size of the basic component depending on whether you use electricity during low or high price periods.
If most of your electricity consumption occurs during the hours of the day when the electricity price is higher than the average, the price of the basic component will increase by the amount of realized impact of usage. Conversely, if you shift your electricity consumption for hours when the electricity price is lower than the average, the price of the basic component will decrease by the amount of realized impact of usage.
By managing your electricity consumption, you can impact the amount of your electricity bill by utilizing the hours of the day and night when the price is lower.
The fixed monthly basic charge of the Helen Smart Electricity contract is not dependent on the amount of your electricity consumption.
An example of the impact of usage
45% Usage that decreases the price
25% Usage that increases the price
30% Neutral impact
Basic component 10,0 c/kWh
Example calculations
Example calculations of the usage impact. In the example, the basic component part is 10 c/kWh. Usage impact in the example is either + 2 c/kWh or - 2 c/kWh.


You have used electricity during lower-priced periods
Impact of usage: - 2 c/kWh
Energy billing price: 10 - 2 = 8 c/kWh
+ basic charge: €/month


You have used electricity during higher-priced periods
Impact of usage: + 2 c/kWh
Energy billing price: 10 + 2 = 12 c/kWh
+ basic charge: €/month
More information about the electricity contract
Where possible, carry out activities that use a lot of energy, such as doing the laundry, going to sauna, charging an EV, or using electric heating, late in the evening, during the night and at weekends when the price of electricity is lower than average.
Find out your current usage data and review your hourly consumption habits in the Oma Helen service. Correct usage data helps to take smart energy-efficiency measures, and even small actions can significantly reduce energy consumption.
Monday - Friday

Saturday - Sunday


Lower price: shift usage to these hours

Typical price trend of electricity at different times of the day

Higher price: reduce usage during these hours

Neutral hours: no major impact on the price
The impact of usage is formed when the hourly prices of your electricity consumption are compared to the monthly average price of electricity on the electricity exchange. Electricity usage that is timed to low-price hours compared to the average price reduces your energy cost, while electricity usage timed to higher-priced hours raises your energy cost.
The impact of usage increases or decreases your monthly energy cost, depending on the timing of your electricity usage during the past month. Typically, the amount of the impact of usage per month is between -2.00 and +2.00 c/kWh, which means that the monthly electricity energy price increases or decreases by the amount of the realized the impact of usage.
Monthly average price for exchange electricity (c/kWh)
Lower price (c/kWh): shift usage to these hours
Higher price (c/kWh): reduce usage during these hours
Neutral hours (c/kWh): no major impact on the price
The impact of usage means comparing the hourly prices of your consumption to the monthly average price of electricity in the power exchange. The calculation formula used is (A-B) / E = c/kWh, which gives the impact of usage for the month in question.
A = Your hourly electricity usage (kWh) is multiplied by the hourly price of exchange electricity (c/kWh), after which the products of all hours are added up. As the electricity consumption of different hours and the hourly price of exchange electricity vary to a great extent, the impact of every hour will be taken into account with this calculation formula.
B = Your electricity usage over the whole month (kWh) is multiplied by the monthly average price of exchange electricity (c/kWh). This gives the value for your electricity usage if it complies with the monthly average price of exchange electricity.
E = Your electricity usage over the whole month (kWh)
When figure B is deducted from figure A, you will get the view of how you have consumed electricity in relation to the monthly average price in the power exchange. The figure obtained is divided by the electricity usage of the whole month, which gives you the impact of usage for the past month (+/- c/kWh).
The final figure is either negative, in which case the amount of your electricity bill will be decreased, or positive, in which case it will increase the amount of your electricity bill. The more you are able to shift usage to the lower-priced hours of the month, the greater the saving you will make in view of the monthly average.
Please note, that in this electricity contract the invoiced price of electric energy cannot be negative.