This makes it even easier for private households to take over functions in the power grid that were previously reserved for industrial suppliers. Since no additional devices are required, the previously incurred networking costs are reduced to a fraction. Thanks to new minimum IT requirements, it is now possible for the first time to network so-called micro-installations with an output of up to 25 kilowatts by way of the Internet. This includes home storage devices such as the Sonnenbatterie, but also heat pumps or EV chargers. This requires an encrypted VPN connection, a so-called "media break" and other security-related safeguards.
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The software developed by sonnen fulfils these requirements, so that sonnen has been able to compete in the regular power market with sonnenVPP since the end of March. Previously, this would have required additional equipment, which is now no longer needed, making the marketing of the systems much more cost-effective. At a data centre, the home storage units networked via the Internet are combined into individual bundles of two megawatts. There the separation from the Internet using the media break is carried out according to the specifications of the TSO. (mfo)
