Ist DAS der beste DIY-5 kWh-Speicher fürs Balkonkraftwerk?

Can you already achieve perfect zero feed-in? Find out in the quiz: with your personal roadmap at the end! https://alkly.de/NulleinspeisungQuizz... New to ESPHome? I'll show you step-by-step how to easily implement Victron BLE with ESPHome: https://alkly.de/go/mk-diyakku Want more than just watching videos? Want weekly LIVE input and support for your project? https://alkly.de/go/mw-diyakku Here's the materials list, circuit diagram, and blog post: https://alkly.de/DIYAkkuBlogpost 100% local DIY battery storage for your balcony power plant – no cloud, no Chinese app! In this video, I'll show you step-by-step how I built a completely self-sufficient 48V LiFePO₄ battery storage system with zero feed-in to the grid – fully integrated into Home Assistant, controlled via MQTT, Trucki Stick, SUN Lumentree inverter, and ESPHome. Learn why 48V is the sweet spot voltage, how to configure Victron MPPTs, and whether building your own system is really worth it compared to buying a ready-made one. ... 🔗 Links: Thanks to our sponsor WattCycle: Here's the link to the battery: 24V 100AH ​​Battery https://is.gd/hPtwY2 * (Includes 6% discount code!) Discount code: ALKLY gives 6% 800W Inverter https://amzn.to/44SKfl0 * Trucki Stick https://amzn.to/4eWJFaD * MPPT Solar https://amzn.to/40plP17 * LYNX Distribution Box https://amzn.to/44P4tfl * DC Distribution Box https://amzn.to/4f3VwDF * M8 50mm² Cable Lug https://amzn.to/44ShWmH * M8 16mm² Cable Lug https://amzn.to/4m1Yrz9 * M10 16mm² Cable Lug https://amzn.to/44Wf20p * DC circuit breaker (as a switch) https://amzn.to/4eZCgaA * mega 150A fuse https://amzn.to/4lVUBr5 * mega 60A fuse https://amzn.to/3UdLHJI * mega 40A fuses https://amzn.to/4nXegZK Smart shunt https://amzn.to/4nQzF6E * 16mm² cable https://amzn.to/44RFh7U * 16mm² cable https://amzn.to/40ldOdv * 50mm² cable https://amzn.to/44xMjzU * 50mm² cable https://amzn.to/4nY2f6g * Switch https://amzn.to/4nTtzCx * Tools: Crimping pliers https://amzn.to/4nUlJsj * Cable cutters https://amzn.to/4eSmZYK * Torque wrench https://amzn.to/46Ni0qi * (better than my borrowed one) Very good multimeter https://amzn.to/3IQ4isM Clamp meter https://amzn.to/3UiIF6Z * Thermal imager https://amzn.to/3GGduiV * Thanks for your input: Christian from @DerKanal Claus from @OffysWerkstatt Detailed description Project setup & goal: 2 kWp balcony solar system, 48 V LiFePO₄ storage (2 × 24 V Wattcycle blocks in series) Lumin 48 V inverter + Victron SmartSolar MPPT 150/35 Zero feed-in via Home Assistant Blueprint instead of Cloud API Hardware Highlights: WattZeit LiFePO₄ Packs – 5 kWh, integrated BMS Victron SmartShunt 500 A – precise SoC tracking Copper busbar & Mega Fuse (70 V DC) – safe high-current distribution Trucki Stick (ESP32) – Wi-Fi/MQTT bridge directly in the inverter Software Stack: ESPHome configuration for Bluetooth polling of all Victron devices Mosquitto Broker + zero-feed-in blueprint, 0-W grid import in approx. 2 s Energy Dashboard: PV yield, charge/discharge kWh, efficiency Practical Test: Deep discharge test: 4.8 kWh usable at 91% charging and 88% inverter efficiency Cost analysis of the Deluxe expansion: ~ €1,950 (as of July 2025) Modularly expandable to + kWh or a second inverter? All links marked with an asterisk (*) are affiliate links or part of Amazon's partner programs. They serve as a guide for potential buyers and explicitly refer to specific products. If these links are used and a purchase is made, I may receive a commission. Of course, there are no additional costs for you when purchasing through these links. Thank you! ``` ☕ Support the channel: https://paypal.me/alklyde ✅ Subscribe to Alkly directly here: https://www.youtube.com/@alkly?sub_co... ▬ *Follow Alkly online ▬▬▬▬ Instagram ▶️   / alkly   TikTok ▶️   / .alkly   Discord Community ▶️ https://alkly.de/discord/ Our Forum ▶️ : https://community-smarthome.com ☕ Support the channel, thank you for your support: https://buymeacoffee.com/alkly 📚 Legal Notice: https://alkly.de/impressum/ ▬ Chapters ▬▬▬▬ 00:00 Why build? 02:23 Project setup 08:56 Installing the solar charge controller 13:58 Solar wiring 17:55 Connecting the inverter 21:44 Reading data from Home Assistant 25:35 Setting up the Trucki Stick 28:05 Zero feed-in 31:00 Energy Dashboard Home Assistant 33:29 Efficiency analysis 37:31 Costs ▬ Hashtags ▬▬▬▬ #Alkly #DIYBalconyPowerPlant #LiFePO4 #HomeStorage #HomeAssistant #ZeroFeed-in #Victron #MQTT #ESPHome #SmartHome #EnergySelf-Sufficiency #BatteryStorage #48Volts #SustainableEnergy #SaveOnElectricityCosts