As Europe's energy transition continues and renewable energy accounts for a growing share of the power mix, behind-the-meter (BTM) electricity pricing is undergoing significant changes. As the key link between wholesale electricity markets and end users, BTM pricing directly affects electricity costs for both commercial and industrial (C&I) businesses and households. It also plays a major role in determining the economic value of flexible energy resources such as C&I energy storage, residential battery systems, solar PV, EV charging, and virtual power plants (VPPs).
Today, electricity supply contracts for C&I and residential customers in Europe generally fall into three common pricing models: fixed electricity pricing, time-of-use (TOU) pricing, and dynamic pricing.
Fixed electricity pricing is the most traditional and, for many years, the most widely used behind-the-meter pricing model in Europe. Under this arrangement, customers sign a contract with an electricity supplier, typically for one to two years. Throughout the contract period, the electricity price remains unchanged, regardless of fluctuations in wholesale market prices.
To manage the financial risks associated with offering a fixed price over a long period, electricity suppliers usually build a diversified procurement strategy. They secure electricity through multiple channels, including but not limited to:
Price Predictability | Protection Against Wholesale Volatility | Zero Motivation for Load Shifting
With a fixed-price contract, customers can lock in their electricity costs for the duration of the agreement. This provides price certainty and protects them from volatility in the wholesale electricity market, including sudden price spikes like those experienced during the 2022 European energy crisis.
However, this stability comes at a cost. Fixed electricity tariffs typically include a risk premium that compensates suppliers for assuming market price risk. As a result, when wholesale electricity prices fall, customers continue paying the agreed fixed rate and cannot benefit from lower market prices.
Another limitation is that fixed tariffs provide little financial incentive for consumers to shift electricity use to cheaper periods. Since the electricity price remains the same throughout the day, opportunities to reduce bills through load shifting or battery energy storage are limited. In most cases, the primary ways to lower electricity costs are by reducing overall consumption or generating electricity with an on-site solar PV system.
As a middle ground between fixed and dynamic electricity pricing, time-of-use (TOU) tariffs are widely available across Europe. Under this pricing model, the day is divided into predefined time periods, with each period assigned a different fixed electricity rate.
A common TOU structure includes two pricing periods:
The off-peak rate is lower than the peak rate, encouraging customers to shift electricity consumption to times of lower demand. In some contracts, these fixed rates may also be adjusted periodically based on the average wholesale electricity price over the previous month.
Predefined Pricing Blocks | Financial Incentives for Load Shifting | Insensitivity to Real-Time Grid Conditions
Compared with fixed-price contracts, TOU tariffs offer greater flexibility and create opportunities to reduce electricity bills by moving energy-intensive activities to off-peak hours. They also improve the business case for battery energy storage, allowing users to charge batteries during low-cost periods and discharge them when electricity prices are higher.
However, TOU pricing is still based on predefined time blocks rather than real-time market conditions. Although the tariff changes between peak and off-peak periods, the prices themselves remain fixed during those periods and do not respond to changes in renewable energy output, weather conditions, or fluctuations in electricity supply and demand. As a result, TOU tariffs provide more flexibility than fixed pricing but are not fully market-based like dynamic electricity pricing.
Dynamic electricity pricing is the most advanced and fastest-growing behind-the-meter pricing model in Europe. In several European countries, electricity suppliers are now legally required to offer dynamic tariffs as an option for eligible customers. The Nordic countries have been pioneers in adopting this model, where dynamic pricing has already achieved widespread market penetration.
A smart meter is a prerequisite for signing a dynamic electricity contract, as it records electricity consumption in real time and enables accurate settlement based on market prices.
Unlike fixed or time-of-use tariffs, dynamic pricing is directly linked to the day-ahead wholesale electricity market, such as EPEX SPOT and Nord Pool. The retail electricity price paid by customers changes every 15 minutes to reflect wholesale market prices. (Before 1 October 2025, prices were updated on an hourly basis in most European day-ahead markets.)
Under the rules of the day-ahead market, the complete set of electricity prices for the following day is published at around 12:40 p.m., allowing customers to know the cost of electricity for every 15-minute interval before the next day begins. This gives households and businesses the opportunity to plan energy-intensive activities, battery charging, EV charging, and other flexible loads during periods when electricity prices are expected to be lowest.
Dynamic electricity contracts typically consist of two main components:
In addition, the total electricity bill includes several regulated cost components, such as taxes, government levies, renewable energy surcharges, and network (grid) charges. Some suppliers may also apply additional fees on top of the dynamic tariff, such as contract administration fees or green energy premiums, which are among the key factors that differentiate one supplier from another.
Maximizing Arbitrage Potential | Automatic Charging During Negative Pricing | Seamless Grid Integration
By linking retail electricity prices directly to the day-ahead spot market, dynamic tariffs unlock the full arbitrage potential of behind-the-meter battery storage. In effect, they provide households and businesses with a simplified way to participate in the wholesale electricity market. Battery energy storage systems can automatically charge when electricity prices are low or even negative and discharge when prices are high, maximizing savings while improving the integration of renewable energy into the grid.
