{"id":32437,"date":"2026-03-05T09:42:58","date_gmt":"2026-03-05T08:42:58","guid":{"rendered":"https:\/\/ppc.d-f.cc\/blog\/look-ahead-instead-of-fixing-later-control-based-on-the-huell-curve\/"},"modified":"2026-11-04T02:13:19","modified_gmt":"2026-11-04T01:13:19","slug":"look-ahead-instead-of-fixing-later-control-based-on-the-huell-curve","status":"publish","type":"post","link":"https:\/\/ppc.d-f.cc\/en\/look-ahead-instead-of-fixing-later-control-based-on-the-huell-curve\/","title":{"rendered":"Anticipate Instead of Correct: Control Based on an Envelope Curve"},"content":{"rendered":"\t\t
\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

The energy transition is increasingly shifting to low-voltage grids: photovoltaics, electric mobility, heat pumps, and home storage systems are driving up both feed-in and peak loads. This poses growing challenges for grid stability, but at the same time creates significant economic potential through the smart use of flexibility.<\/p>

A new position paper from the WARAN project consortium\u2014which<\/span> was also<\/span> coordinated with the SISSY consortium<\/span> (both projects are funded by the BMWE)\u2014shows how the existing infrastructure of the intelligent metering system (iMSys) can be further developed from a primarily reactive to a proactive, market-oriented control system. Central to this is the concept of the envelope curve.<\/p>

<\/p>

From Ad Hoc Control to Preventive Flexibility Management<\/h3>

To date, grid-oriented control in the low-voltage sector has primarily been used as a last resort, for example under Section 14a of the Energy Economy Act (EnWG) or Section 9 of the Renewable Energy Sources Act (EEG). These instruments enable immediate power limitation in congestion situations.<\/p>

The power envelope takes effect earlier: It defines a power framework (maximum and optional minimum consumption or feed-in values) for future time intervals, within which an energy management system can optimize the connected installations. Technically, the concept is based on the EEBUS use case \u201cPower Envelope (POEN)\u201d and utilizes the standardized, cyber-secure infrastructure consisting of a smart meter gateway and a control device.<\/p>

This makes iMSys a platform for the proactive, coordinated use of flexibility that is both grid- and market-oriented.<\/p>

<\/p>

Added Value for Distribution Utilities: Predictability Instead of Disruption<\/h3>

The envelope curve gives distribution system operators the ability to address congestion as early as the day-ahead horizon. Instead of taking short-term action, a forecast-based capacity limit can be communicated that:<\/p>