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We are currently experiencing issues with consumption data in the app. We are investigating the issue.
You can check your consumption in MyHerrfors

Price fixing protects your electricity bill from expensive months.

Spot electricity is cheap, until it isn’t. As a Herrfors Spot+ customer, you can protect yourself from expensive months by fixing your price. It works like insurance against a bad electricity day.Check your personal price-fixing offers and lock in your price easily in Kiinnittämö.

Make a price fixing for your Spot+ contract.
How price fixing works

July 2026

1 mo

1.7. – 31.7.2026

Fix the price

WINTER 2026 – 2027

5 mo

1.11.2026 – 31.3.2027

Fix the price

2 YEARS

23 mo

1.7.2026 – 31.5.2028

Fix the price

Prices include VAT 25.5%. The prices shown are example prices for an average customer. Your personal fixing price may differ from these prices. Check your own fixing prices in the Kiinnittämö.

Price fixing protects you from rising electricity prices.

Do you want to get all the benefits of spot electricity, but are worried about high price spikes in winter? A Spot+ contract works like a regular spot electricity contract, but also offers the possibility to protect yourself from price spikes. You can fix part of the electricity price in advance for the months you choose with a price fixing and thus protect yourself from large fluctuations.

Example of price fixing: January 2026

Electricity prices can rise quickly in winter, as happened at the beginning of 2026. Price fixing exists so that you can protect yourself from exactly these kinds of price spikes and bring predictability to your electricity bill.

Here is a real example from one of our customers living in a detached house who fixed the price at 7.82 c/kWh for January 2026. By fixing the electricity price in advance, they saved €116 on their January electricity bill.

  • Electricity bill with price fixing: €206
  • Electricity bill without price fixing: €322

>> Savings in one month: €116

The purpose of price fixing is to prevent the electricity bill from becoming very expensive when prices rise.

What price fixing is – and what it is not

Price fixing is

  • A cost-effective way to protect yourself from rising average spot electricity prices
  • A way to buy part of your electricity in advance at a known price
  • Insurance for your electricity bill in crisis situations

Price fixing is not

  • A fixed-price electricity contract
  • A billing price
  • A way to “beat” spot prices

Price fixing smooths out price fluctuations

With price fixing, you decide in advance at what price you buy the portion of electricity you choose.

  • If prices rise high, the fixing can bring significant savings.
  • If prices remain low, you only pay a small extra amount for the peace of mind it provides.

A small extra cost in good times is inexpensive insurance for difficult times.

How to get started

1. Sign a Spot+ electricity contract

To make a price fixing, you need to have a Herrfors Spot+ contract. You can sign the contract through the link below.

Order Spot+
2. Go to Price Fixing

In the Price Fixing service you will find everything you need to make a price fixing. You need to log in to make a fixing.

To the Price Fixing service
3. You will see your consumption forecast and the price fixing offers available to you.

Kiinnittämö automatically calculates a monthly estimate of average electricity consumption. You will also see the price fixing offers available to you for different time periods.
4. Decide when and how much to fix

Choose the price fixing period you want. You can choose, for example, one month or up to two years.

By default, you fix the price for your estimated average consumption, but if you prefer, you can fix a smaller amount by selecting “Custom selection.”
5. Enjoy a more stable electricity price

You are protected from large electricity price fluctuations for the duration of your price fixing period.

Our price fixing offers

July 2026

1 mo

1.7. – 31.7.2026

Fix the price

WINTER 2026 – 2027

5 mo

1.11.2026 – 31.3.2027

Fix the price

2 YEARS

23 mo

1.7.2026 – 31.5.2028

Fix the price
See more price fixing offers in the Price Fixing service

Prices include VAT 25.5%. The prices shown are example prices for an average customer. Your personal fixing price may differ from these prices. Check your own fixing prices in the Kiinnittämö.

Manage your price fixings in the Price Fixing service

The Price Fixing service is a free service provided by Herrfors where you can manage your price fixings:

  • See the price fixing offers available to you
  • Make price fixings easily
  • Track your own price fixings

Frequently asked questions

Here you will find answers to the most frequently asked questions about price fixing.

Can I make price fixings for several different months?

Yes, you can. You can fix the price for the amount of electricity you choose for one, several, or all upcoming months. Many customers fix winter months in several parts when the price feels suitable.
Can I make several price fixings for the same month at different times?

Yes. You can make price fixings for the same month in several parts on different days and at different prices by choosing ”Custom selection” in Kiinnittämö. This allows you to spread the price risk over time instead of fixing everything at one price.
What happens if my consumption changes significantly in winter?

When making a price fixing, you decide how much to fix. The actual billing is always based on your actual consumption. If you use more or less electricity than you have fixed, the difference is automatically bought or sold at the spot price. Read more here.
Can I see somewhere how my price fixings have affected my bill?

Yes. In the Price Fixing service you can see a detailed billing report where you can review month by month how the price fixings have affected your billing price. Read more here.
Is price fixing the same as a fixed-price contract?

No. In a fixed-price contract, all electricity is bought at the same price. In price fixing, only part of the electricity is bought in advance, and the rest is always priced according to the spot price. This means you can still benefit from cheaper hours.
Why can the price fixing rate be higher than the current spot price?

The price fixing prices in Kiinnittämö are based on the market’s current expectations of future spot prices. This means however that expectations for future electricity prices are often lower when current spot prices are low.
Can I choose not to make price fixings and still use the service?

Yes. You can follow the price fixing rates without making any fixings. Making price fixings is always voluntary.
How much does using the Price Fixing service cost?

Nothing extra.

The price fixing service is included in the Spot+ contract at no additional cost. You pay the same basic fees and margins as with a normal Spot contract. There are also no hidden costs or service fees in price fixings. You only pay the price at which you decide to buy electricity in advance. Following the service and viewing price fixing offers is always free, and making fixings is not mandatory.
Until when can I still fix the price for the next month?

You can fix the price for the next month up to three days before the start of the month being fixed. For example, you can still fix February on January 29.

Should I schedule my electricity usage if I make a price fixing?

Despite price fixings, you still benefit just as much from scheduling your electricity consumption to hours with lower spot prices. For example, if you do your laundry during a cheaper hour, you reduce your electricity cost slightly, and your final billing price may even be lower than the fixing price.

If it is possible for you to schedule your consumption, it is still worth doing so.

How does price fixing work in practice?

What are the fixing volumes based on?

Price fixings are always based on a forecast of your future electricity consumption. We create the forecast for you, so you do not need to estimate it yourself.

How your consumption forecast is calculated

We calculate your monthly consumption forecast based on your electricity usage during the previous year. This helps ensure that the fixing corresponds as closely as possible to your actual usage. The forecast is automatically updated based on your consumption history during the contract period.

What are you fixing when you make a price fix?

When you make a price fix, you agree in advance on a certain amount of energy that is purchased at the same price for every quarter-hour of the month.

In practice, this means that when making the price fix, you choose an hourly energy amount, which is then evenly distributed across all quarter-hours of the month.

Example

January consumption1000 kWh1000\ kWh
Hours in January744 hours744\ hours
Average monthly consumption per hour:1 000 kWh744 h=1,34 kWh/hour\frac{1\ 000\ kWh}{744\ h} = 1,34\ kWh/hour
Since each hour has four quarter-hours, this means per quarter-hour:1,34kWh4=0,335 kWh/quarter−hour\frac{1,34 kWh}{4} = 0,335 \ kWh/quarter-hour

What happens if my consumption does not match the fixing?

You pay the agreed price for the fixed portion.
Electricity for the fixed portion has been purchased in advance at a certain price. This price affects your billing for each 15-minute interval compared to the spot price.

The rest is billed according to the spot price.
Actual consumption almost never matches the fixed amount exactly. Therefore, situations arise where electricity:

  • is bought additionally at the spot price
  • is sold back at the spot price

When does selling back result in a cost and when in a credit?
For each 15-minute interval, the following are compared:

  • the price of the electricity bought in advance
  • the spot price for that specific 15-minute interval

If the fixing price is lower than the spot price >> The difference is credited to you

If the fixing price is higher than the spot price >> The difference is charged to you

In the example, 3 kWh has been fixed for each 15-minute interval at a price of 10 c/kWh.

1 – You use exactly the fixed amount

  • Consumption = 3 kWh
  • Spot price = 30 c/kWh
  • Fixing price = 10 c/kWh

Fixed portion = 3kWh⋅10ckWh=30cent3\,\mathrm{kWh} \cdot 10\,\frac{\mathrm{c}}{\mathrm{kWh}} = 30\,\mathrm{cent}

Totalcost = 𝟑𝟎𝐜𝐞𝐧𝐭\mathbf{30\,cent}

2 – Overconsumption

  • Consumption = 5 kWh
  • Spot price = 5 c/kWh
  • Fixing price = 10 c/kWh

Fixed portion = 3kWh⋅10ckWh=30cent3\,\mathrm{kWh} \cdot 10\,\frac{\mathrm{c}}{\mathrm{kWh}} = 30\,\mathrm{cent}

Overconsumption = 2kWh⋅5ckWh=10cent2\,\mathrm{kWh} \cdot 5\,\frac{\mathrm{c}}{\mathrm{kWh}} = 10\,\mathrm{cent}

Totalcost = 𝟒𝟎𝐜𝐞𝐧𝐭\mathbf{40\,cent}

3 – Underconsumption (Spot price is high)

  • Consumption = 1 kWh
  • Spot price = 30 c/kWh
  • Fixing price = 10 c/kWh

Used fixed portion = 1kWh⋅10ckWh=10cent1\,\mathrm{kWh} \cdot 10\,\frac{\mathrm{c}}{\mathrm{kWh}} = 10\,\mathrm{cent}

Unused portion = 2kWh⋅(10ckWh−30ckWh)=−40cent2\,\mathrm{kWh} \cdot \left(10\,\frac{\mathrm{c}}{\mathrm{kWh}} – 30\,\frac{\mathrm{c}}{\mathrm{kWh}}\right) = -40\,\mathrm{cent}

Totalcost = −𝟑𝟎𝐜𝐞𝐧𝐭\mathbf{-30\,cent}

4 – Underconsumption (Spot price is low)

  • Consumption = 1 kWh
  • Spot price = 3 c/kWh
  • Fixing price = 10 c/kWh

Used fixed portion = 1kWh⋅10ckWh=10cent1\,\mathrm{kWh} \cdot 10\,\frac{\mathrm{c}}{\mathrm{kWh}} = 10\,\mathrm{cent}

Unused portion = 2kWh⋅(10ckWh−3ckWh)=14cent2\,\mathrm{kWh} \cdot \left(10\,\frac{\mathrm{c}}{\mathrm{kWh}} – 3\,\frac{\mathrm{c}}{\mathrm{kWh}}\right) = 14\,\mathrm{cent}

Totalcost = 𝟐𝟒𝐜𝐞𝐧𝐭\mathbf{24\,cent}

How is the billing price calculated?

  • Prices are calculated for each 15-minute interval.
  • The calculation is done monthly once the metering data has been received.
  • The detailed calculation is reported in the Price Fixing service.

On your electricity bill, you will see the price without fixings as well as the “result of the fixing” if any price fixings have been made.

What will I see on my electricity bill?

On your electricity bill, you will see both the price without fixings and the “result of the fixing” if any price fixings have been made.

The amount of the fixing result is the fixed average amount for the month multiplied by the number of hours in the month, for example 1 kW × 744 h = 744 kWh.

The price is the difference between the monthly fixing price and the Finnish average spot price for that month

Support and guidance for price fixings

Herrfors provides customer service and guidance for making price fixings, as well as advice on managing electricity pricing.

  • Mobile: (06) 781 5300
  • Email: info@herrfors.fi
  • Location: Kauppiaankatu 10, 68600 Pietarsaari
  • Location: Rehutie 1, 84100 Ylivieska