Energy Demand Management allows the same amount of energy to be produced as is consumed. Electrical energy is not stored in the cables and if it were not regulated, imbalances would appear.

To regulate energy management, different types of plants are used: base plants, which produce a lot of very cheap energy, but are very inflexible when it comes to adapting to demand; peak plants produce more expensive energy, but adapt quickly to demand.

Demand and generation forecasts are also made according to the weather (wind, solar), in addition to auctions to regulate which suppliers sell the electricity.

In Spain, the organization that manages the electrical network is Red Eléctrica Española.

The Energy Management System is part of an organization's management system in the form of a continuous cycle of planning, implementation, verification and improvement of the actions carried out to comply with its energy obligations.

Benefits of an energy management system for an organization:.

The greatest benefit of an Energy Management System, through compliance with the UNE EN 16001 standard, is to promote the energy efficiency of companies with their corresponding economic and energy savings, thus achieving a reduction in greenhouse gas emissions.

Other benefits associated with this management system are:

• - Reduction of energy consumption and energy intensity.

• - Competitive and image improvements.

• - Improvement of the energy efficiency of the processes.

• - Significantly improves cost control.

• - Increased transparency and dialogue with interested parties.

• - Promotes technological innovation.

• - Legal compliance of the organization in energy matters.

• - Positive assessment in public procurement as indicated in the current Energy Savings and Efficiency Plan.

• - Reduction of direct and indirect greenhouse gas emissions.

• - Reduction and delay of reinvestments in equipment.

• - Increase in the operational time of the installation.

• - Distributed generation.

• - Virtual power plant.

• - Rush hour.

• - Electricity generation.

• - Electrical distribution.

• - Intermittent energy sources").

• - Reversible hydroelectric power plant.

• - Network electricity storage").

• - Night electricity rate.

• - Electrical energy distribution network.

• - Electrical energy transportation network.