{"id":87708,"date":"2026-08-04T13:52:26","date_gmt":"2026-08-04T11:52:26","guid":{"rendered":"https:\/\/energyear.com\/?p=87708"},"modified":"2026-08-04T14:00:35","modified_gmt":"2026-08-04T12:00:35","slug":"peak-shaving-reduccion-picos-demanda-electrica","status":"publish","type":"post","link":"https:\/\/energyear.com\/en\/diccionario-energetico\/peak-shaving-reduccion-picos-demanda-electrica\/","title":{"rendered":"Peak Shaving: what it is and how it reduces peaks in electricity demand"},"content":{"rendered":"
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Peak Shaving: what it is and how it reduces peaks in electricity demand<\/h1>\t\t\t\t<\/div>\n\t\t\t\t
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Peak Shaving is an energy management strategy that involves reducing peaks in electricity demand at a facility through the use of energy storage systems, distributed generation or smart consumption control mechanisms. Its main objective is to reduce the maximum power drawn from the electricity grid during specific periods, thereby optimising both energy costs and system efficiency.<\/p>

In the renewable energy and energy storage sector, peak shaving has become one of the most important applications of BESS (Battery Energy Storage System) systems. During periods of peak electricity consumption, the batteries supply part of the energy required to power the facility, thereby preventing the entire demand from being met directly from the grid. As a result, the peak power recorded is reduced, as are the costs associated with capacity contracts and demand charges.<\/p>

The growing electrification of industry, the rise in photovoltaic self-consumption and the expansion of storage systems have driven the development of peak shaving as an essential tool for improving energy flexibility. This strategy is currently being applied in industrial plants, commercial buildings, logistics centres, hospitals, data centres, critical infrastructure and large renewable energy facilities seeking to optimise their electricity consumption and reduce their energy bills.<\/p>

Although the concept may seem straightforward, peak shaving requires precise control over the behaviour of the installation. Energy management systems continuously analyse demand, battery charge levels, renewable energy generation and grid conditions to determine the optimal time at which the storage system should begin discharging.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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How does peak shaving work?<\/h2>

Peak Shaving works on a very simple principle: using an alternative energy source during periods of peak demand to prevent the power drawn from the grid from reaching high levels. In a facility equipped with a BESS system, the batteries are charged when demand is low, there is a surplus of renewable generation, or the price of electricity is more favourable. Subsequently, when consumption rises and approaches the set power limit, the system begins to discharge the batteries to supply part of the energy required.<\/p>

In this way, the demand recorded by the electricity meter remains within pre-defined limits, thereby avoiding financial penalties and reducing the contracted power required to operate the installation. This entire process is carried out automatically by an Energy Management System (EMS), which continuously monitors variables such as:<\/p>