en.Wedoany.com Reported - UK distributor Midsummer is offering free access to its battery optimization app for customers of the bankrupt company GivEnergy, with no subscription fee required.

GivEnergy ceased operations in April 2026, raising concerns among its customers about the continued availability of optimization software and cloud services. The company has entered administration, and there are reports that household users may need to pay in the future to enable battery optimization features.

In response, Midsummer has relaunched its previously suspended Smug app, providing free energy management features for households with GivEnergy batteries, with plans to include more brands on the platform in the future. The app is already compatible with Fox ESS devices.

Using the Smug app is not entirely cost-free, as it requires Midsummer's Smug Bug in-home display device, priced at £40 (approximately $53). The display device retrieves data from the GivEnergy inverter via a local WiFi network, while the app connects to the device through cloud services, allowing users to monitor the system remotely. Midsummer says users can also add details of time-of-use electricity tariffs through the new platform.

Midsummer plans to add more features in the future, including access to demand flexibility markets through the app. ESS News has learned that this feature will involve collaboration between Midsummer and third-party flexibility traders, with service revenue distributed among households, distributors, and traders.

Andy Rankin, responsible for Midsummer's software development, said the company is disappointed that GivEnergy customers are now being asked to pay a premium subscription for features previously expected to be free over the battery system's lifecycle. Rankin stated: "As a supplier of GivEnergy products, we have a responsibility to provide better service to our customers. I am also a GivEnergy battery user myself, and I happen to have a convenient system to test prototypes. Our software team has done an excellent job bringing this product to market in just a few months."

A company spokesperson told ESS News that the bankruptcy has also affected installers' confidence in adopting new products. The spokesperson said: "Renewable energy installers rely heavily on trust. Without solid evidence, it is often difficult to convince installers to introduce a new brand. Once they are hurt, rebuilding trust becomes very challenging. We are simply continuing to provide good service in other areas and reiterating that this is an unfortunate situation for GivEnergy, but it does not reflect the (broader) market."

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