The [storage API](https://github.com/Sjord/growatt_api_client/pull/13) doesn't seem to work well for everyone. There are two reports of it returning 504: * @wynandmyriota [here](https://github.com/Sjord/growatt_api_client/pull/13#issuecomment-692472950) * @schimmelbirne [here](https://github.com/Sjord/growatt_api_client/issues/12#issuecomment-629094940)