Software for the energy transition, custom-built

It mainly depends on scope, interfaces and data volumes: a PV calculator is quicker to build than an energy management system that controls devices and processes data from several grid operators. That is why wunderwerk starts with a clearly defined first step (MVP, pilot or proof of concept) and gives you a transparent cost range before every step. The initial consultation is free, and you can get a first estimate via the cost calculation.

Energy management software (EMS) records generation and consumption, for example of a PV system, battery, heat pump and wallbox, analyses the data and controls the devices so that as much self-generated electricity as possible is used and load peaks are reduced. Companies also use it for energy monitoring and reporting. wunderwerk develops energy management software for manufacturers, energy suppliers and service providers who want to offer it to their customers or build it into their own products.

An energy community (EEG or BEG) needs management of members and metering points, the grid operator's energy data from the EDA data exchange, allocation by distribution key and billing that is correct for VAT purposes. For a single community, ready-made solutions are often enough. wunderwerk develops custom software for energy suppliers, municipalities and service providers that manage many communities, have their own tariffs and processes or want to offer the solution under their own brand.

Since June 2026, distribution system operators in Germany have had to enable energy sharing technically under § 42c EnWG: electricity from a renewable energy system is shared with consumers in the same balancing area. This requires software for participant management, allocation of meter readings and billing, similar to tenant electricity and shared building supply. wunderwerk develops such solutions for energy suppliers, municipal utilities and project developers that are building energy sharing as an offering of their own.

Yes. wunderwerk connects devices and data sources via their interfaces: manufacturer APIs and clouds, protocols such as Modbus, MQTT and OCPP, and data from grid operators and smart meter portals. Where there is no clean interface, we work out in the concept phase which approach is reliable and maintainable before any development starts.

At wunderwerk, a first usable version is ready early, after a few weeks to months depending on scope and interfaces. We start with an MVP, pilot or proof of concept and then expand in short steps with regular test versions. That way you see tangible benefits early instead of waiting for one big finish.

Yes. Consumption data from smart meters is personal data, and wunderwerk treats it as such: hosting in the EU, on-premise or in your own cloud if you prefer, roles and permissions, encryption and deletion concepts. We develop to current security standards and build in data protection from the start instead of retrofitting it.

In most cases, yes. Right at the start, wunderwerk checks which systems can sensibly be integrated and connects them via clean interfaces. If systems are outdated or cause security or data protection problems, it can make more sense to replace them with a clear overall solution. We discuss this openly before any development starts.

For energy suppliers, municipal utilities and grid operators, manufacturers and providers of energy technology, energy start-ups, municipalities and service providers working with energy communities, as well as larger PV, battery and heat pump installers. In other words, for anyone whose offering includes software or whose software connects complex processes. In the initial consultation, wunderwerk will also tell you openly if a standard solution is a better fit.

Then your software is adapted. wunderwerk supports software over many years: maintenance, updates and adjustments to new requirements such as the EAG, the EnWG or new tariff models are part of it. Because we know the code and work with open standards, changes remain predictable and you stay independent.

Yes, digitalisation projects in Austria, Germany and Switzerland are funded through various programmes, depending on country, region, company size and project; in Austria, for example, through KMU.DIGITAL, the Austrian funding programme for SMEs. wunderwerk runs an initial funding check with you and shows which options are available for your project.

Because we support the energy transition out of conviction and have been building software that works for more than 20 years. Among other things, wunderwerk developed the solarmaker PV calculator with more than 15,000 system plans and the thenks energy transition platform. You speak directly with the Managing Director and get consulting, development and operation from a single source, from a well-coordinated team in Tyrol, Vienna and Berlin.