We installed the UK’s first Tesla Powerwall 3 in June 2024 and consulted on its design, earning Spirit Energy an award from Tesla for installation quality. In this video we explain everything you need to know about Tesla Powerwall 3, including its 15 kWh nominal (13.5 kWh usable) battery storage, 5 kW charge rate (up to 8 kW with DC expansion packs), hybrid inverter with kW continuous output, three MPPT solar string inputs and 60 to 550 V voltage range. We cover how to add up to three expansion packs for 216 kWh total capacity, Tesla Gateway power cut protection, seamless Tesla app integration, intelligent energy management and the robust ten-year warranty guaranteeing 80% capacity at the end of the warranty period. Watch the full technical breakdown: Our video on installing 19 Powerwalls is here: 0:00 Tesla Powerwall 3 UK installation by Spirit Energy 0:25 Tesla Powerwall 3 battery capacity 15 kWh / 13.5 kWh usable 0:39 Tesla Powerwall 3 charge rate and charging time explained 0:48 Tesla Powerwall 3 scalability with multiple units on single-phase 0:56 Tesla Powerwall 3 DC expansion pack for cheaper extra storage 1:22 Tesla Powerwall 3 maximum capacity up to 216 kWh 1:43 Tesla Powerwall 3 charge rate increase with expansion packs 1:52 Tesla Powerwall 3 expansion pack installation options 2:13 Tesla Powerwall 3 hybrid inverter overview 2:27 Tesla Powerwall 3 inverter rating kW continuous output 2:46 Tesla Powerwall 3 solar inputs (MPPTs) and 20 kW DC limit 3:03 Tesla Powerwall 3 MPPT voltage range and panel configuration 3:22 Tesla Powerwall 3 inverter downrating for DNO restrictions 3:49 Tesla Powerwall 3 remote uprating when DNO offer improves 4:07 Tesla Powerwall 3 power cut protection with Tesla Gateway 4:55 Tesla Powerwall 3 three-phase backup not yet available 5:02 Tesla Powerwall 3 backup for DC and AC-coupled solar 5:09 Tesla Powerwall 3 app demo, monitoring, and API integration 5:45 Tesla Powerwall 3 algorithm for savings optimisation 6:11 Tesla Powerwall 3 extra features: thermal management, Storm Watch, Tesla Electric 6:23 Tesla Powerwall 3 warranty 80% capacity after 10 years unlimited cycles 6:51 How to get Tesla Powerwall 3 installed with Spirit Energy Request a quotation from Spirit Energy: ? Watch on of our client's solar journey which shows the process of getting solar from point of enquiry through to the design, survey, modelling, project management, installation, and handover: Visit our website - Try our Free Solar Calculator - Try our Free Battery Storage Calculator - Follow us on LinkedIn - Follow us on Instagram - Follow us on Facebook - Follow us on X / Twitter -