Energy management system

In order to use your energy as efficiently as possible, battery storage should be equipped with a suitable energy management system. This combines different use cases and enables you to create your energy of the future.

Get the most out of your systems

Measure and control

The energy management system controls your energy just as you control your company.

Act

We advise you on further optimization.

Plan

We advise you on the right use cases.

The energy system is changing.

Check

The energy management system prepares the data in a report.

Do

The measurement and control technology automatically makes (the correct) decisions about the energy flows.

The sequence of the PDCA cycle repeats itself so that you get the most out of your energy at all times.

One for all and all for one

The different use cases can be combined with each other and should be adjusted regularly to get the most out of your energy at all times.

Day-ahead spot market purchases

In day-ahead trading, electricity is sold for the following day on the EPEX Spot in Paris (sports market of the European Power Exchange), on the EXAA in Vienna or in OTC (over-the-counter trading) via contracts negotiated over the counter.

How and when can I do day-ahead trading?

In principle, trading in electricity is anonymized and takes place on all days including public holidays. The minimum trading volume is 0.1 MWh. Every electricity exchange has different trading deadlines that must be adhered to.

EPEX Spot is divided into four different market regions: France, Switzerland, Germany and Austria
Germany and Austria must submit bids for the next day’s auctions by 12 noon the day before
results and corresponding awards will be published at 12:40 p.m. on the respective day

Intraday trading

The continuous sale of electricity that is delivered on the same day is called intraday trading. This is about short-term wholesale electricity trading.

The aim of intraday trading is to keep shortfalls and surpluses in your own balancing group as low as possible in the short term during the day. Furthermore, unforeseen changes in electricity production and demand should be absorbed via market mechanisms before the use of balancing energy becomes necessary.

How and when can I do intraday trading?

In principle, trading in electricity is anonymized and takes place on all days including public holidays. Intraday trading takes place on the EPEX spot and in OTC trading and the minimum delivery quantity is 0.1 MWh.

trade in 15 minute and hour blocks
a position can be traded up to 5 minutes before delivery begins
intraday trading begins at 3 p.m. the previous day until 5 minutes before delivery begins

Control power

Control power is often also referred to as control energy and acts as a reserve to compensate for fluctuations in the power grid or power frequency. Electricity is both fed into the grid and also taken from the grid. There are two types of control power:

Positive control energy: Power feed-in to compensate for a network frequency that is too low
Negative control energy: Throttling of the feed in to reduce the grid frequency

Why do we need control power?

As the number of renewable energies increases, there are higher fluctuations in the power grid because neither sun nor wind are constantly available for production. Of course, every electricity consumer causes load profiles with constant fluctuations. To ensure that electricity does not suddenly fail, electricity producers and electricity suppliers are obliged to provide precise forecasts about their feed-in and withdrawal. The aim is to keep the power grid in Germany stable by providing the most accurate forecast possible.

If a fluctuation does occur because a power plant fails or the weather changes at short notice, the control energy takes effect to compensate for the fluctuation within seconds and avert a collapse.

power fluctuations are compensated for within seconds or quarter of an hour
electricity producers, electricity consumers and electricity storage facilities can provide balancing energy

Our answers to your questions

Yes, the EMS basically works without an internet connection. In particular, the use cases for local optimization such as self-consumption optimization or peak shaving do not rely on a functioning internet connection. However, if data from the energy markets is required for flexibility marketing, an internet connection is a prerequisite. Depending on the marketing (e.g. balancing power), a separate internet connection is also required for IT security reasons.

All relevant data is initially stored locally on the energy management system. For better and faster display in the portal, the data is synchronized with a specially secured cloud server. The protection of data is based on the current state of the art and is in accordance with the European General Data Protection Regulation.

The data is stored on the EMS manufacturer’s servers within the EU. Access is granted only to the operator himself, to Allgäu Batterie to provide the services andto you as the owner of the data.

Without internet, you cannot access the system remotely or participate in other marketing opportunities that require data exchange with energy traders (e.g. intraday trading). All local use cases can be used without any significant restrictions, even without the Internet.

The EMS is equipped with various security features that, among other things, prevent direct access via the Internet. In addition, the entire security architecture is checked at regular intervals by independent experts and examined for vulnerabilities.