Glossary

Reactive power

Reactive power is a type of electrical energy that exists within an electrical system but is not used to perform work, such as converting energy into mechanical motion or heat. Reactive power is necessary for the proper functioning of electrical devices, such as transformers and inductive motors, and for maintaining voltage within the electrical system.

Reactive power is crucial for the operation of the electrical system because it ensures that all equipment functions correctly and efficiently. Although it does not produce real power, its presence and proper management are essential for the stability and reliability of electrical systems.

Regulated energy consumer

A regulated electricity consumer is an individual or legal entity that consumes electricity based on a bundled electricity supply contract with an electricity supplier. These consumers have a legal entitlement to an electricity or gas supply price regulated by the Regulatory Office for network industries (ÚRSO). Regulated consumers include households and small businesses with an annual consumption of up to 30 MWh of electricity or 100 MWh of gas. This group also includes homeowners' associations with their own boiler rooms, social service facilities, and rental and social housing.

Regulated consumers benefit from stable and predictable electricity prices, providing them protection from fluctuations in the energy market. These regulated prices are set to ensure access to electricity at fair and affordable rates for more vulnerable population groups and small businesses.

Regulating capacity

Regulating capacity represents the maximum range of power by which an energy source, device or consumer can adjust its contribution to the power grid in order to regulate stability. This capacity is crucial for providing ancillary services such as frequency balancing, voltage maintenance and correction of system deviations.

Regulating capacity is essential for ensuring a balance between electricity generation and consumption in real-time, contributing to the reliability, security and stability of the electricity system, and enabling the efficient operation of the entire energy network.

Regulating electricity (RE)

Regulating electricity (RE) is electricity used to maintain the balance between the production and consumption of electricity in the power system. This type of electricity is deployed in the event of deviations, when it is necessary to immediately increase or decrease the amount of supplied energy to ensure the stability of the electrical grid.

Regulating electricity can be positive or negative. Positive regulating electricity balances positive system deviations (i.e. excess electricity in the power grid) and requires an increase in electricity production from energy sources or a decrease in consumption on the part of customers. Negative regulating electricity compensates for negative deviations in the system (i.e. a lack of electricity in the power grid), and necessitates a reduction by producers or an increase in consumption by consumers.

Regulation Energy (RE)

Regulation energy (RE) is a specific type of energy used to maintain the stability of the power grid during fluctuations between production and consumption in the electrical system. These fluctuations may arise due to factors such as inaccurate production and consumption plans, changes in weather conditions or unexpected consumer behavior.

Regulation energy is a key component of ancillary services, provided by sources capable of quickly increasing or decreasing production, or adjusting consumption to maintain balance within the grid.

The service enhances grid efficiency and helps reduce costs associated with balancing deviations. While regulation energy does not directly affect distribution charges, efficient grid management with RE can positively impact the overall cost of electricity in the long term.

Regulation potential of the delivery point

The regulatory potential of a delivery point is the ability of that point to regulate the production and consumption of electricity in order to provide non-certified ancillary services to the electrical grid. This potential is crucial for optimizing the use of energy resources and maximizing financial rewards from providing these services.

Key aspects of regulatory potential include:

  • Regulation of production and consumption: A delivery point with high regulatory potential can effectively change its electricity consumption and production, allowing for the charging and discharging of batteries as needed by the grid.

  • Financial rewards: A brAIn battery storage system that utilizes regulatory potential is financially rewarded for providing regulatory services, contributing to the return on investment.

  • Dynamic consumption: A delivery point should not have constant consumption throughout the day. Larger fluctuations in electricity consumption and production increase regulatory potential, as the FUERGY system can more frequently charge and discharge batteries.

Regulatory potential is important for companies that want to optimize their energy costs and contribute to the stabilization of the electrical grid. Higher regulatory potential means greater opportunities for earning through energy services.

Renewable energy

Renewable energy is energy obtained from renewable energy sources, meaning natural sources that are naturally replenished at the same rate or faster than they are consumed. The main types include solar, wind, hydro, and geothermal energy, as well as biomass and biofuels.

These sources are sustainable and virtually inexhaustible under normal use. The use of renewable energy helps reduce greenhouse gas emissions, supports energy independence, and is a key pillar of the transition to a low-carbon economy.

You can learn more about the individual types of sources under the term renewable energy source.

Renewable energy source

A renewable energy source is a natural resource that replenishes itself naturally at a rate equal to or faster than it is consumed, and is therefore virtually inexhaustible under normal usage.

The main renewable sources include:

  • solar radiation (photovoltaics, solar thermal systems),

  • wind (onshore and offshore turbines),

  • water (hydropower plants, pumped storage systems),

  • geothermal heat,

  • biomass and biofuels.

Renewable energy sources are the foundation for producing renewable energy and enable a long-term sustainable energy mix with minimal environmental impact.

How energy from these sources is used and what benefits it brings for climate goals can be found under the term renewable energy.

Reserved capacity (RC)

Reserved Capacity (RC) is the amount of electrical power secured for a consumer based on a monthly, quarterly, or annual electricity distribution contract or contract on the joint supply of electricity. At very high voltage (VHV) and high voltage (HV) levels, RC is determined as the quarter-hourly power secured based on a mutually confirmed contract.

The tariff for reserved capacity is charged monthly, meaning the consumer pays regularly for the reserved capacity according to the contractual terms. If the consumer exceeds the RC value, the supplier charges a capacity overrun fee. The value of reserved capacity can be increased during the calendar year up to the level of the Maximum Reserved Capacity (MRC).