How to Connect Solar Panels to Google Home: A Practical 2026 Guide

If you’re wondering whether you can connect your solar panels to Google Home so you can monitor what they’re producing, automate appliances when there’s spare electricity, or just glance at the day’s totals while you make a cup of tea, you’re in the right place. Voice control of solar is real, but it’s a slightly trickier game on Google Home than it is on Alexa, and the difference is worth knowing about before you start ordering kit.

01The current state

If you’re hoping to enable a native “Solar” action in the Google Home app and have your inverter cheerfully chat back, the news is mostly disappointing. After years of asking installers and watching customers try to get this working, the gap between expectation and what’s actually shipping is wider than most marketing copy admits. The major inverter manufacturers have invested in their own monitoring apps, not in Google Home integration, and the Google Assistant ecosystem has been distracted with the broader transition to Gemini. Solar voice integration has consistently slipped.

That doesn’t mean you’re stuck. It means the route to voice-controlled solar runs through smart plugs and (for the technically inclined) Home Assistant, rather than through any single tap of a “connect” button. The good news is the workarounds are cheap, reliable, and cover more practical use cases than people realise. Our broader guide to automating appliances with solar covers some of the territory if you’re approaching this from a “how do I actually use the surplus?” angle.

02Your three realistic routes

Before we go deeper, here’s the lay of the land. Every solar owner I’ve spoken to who has Google Home working with their setup has gone down one of these three paths.

Most setups I’ve seen working well combine elements – smart plugs on the appliances that benefit from voice control, plus (for the technically inclined) Home Assistant tying inverter data and routines together. If you’re still choosing your inverter and you care about home automation, our guide to the best solar inverters is worth a read since some brands play far more nicely with smart home platforms than others.

03Which inverters have native Google Home support?

Short list. Here’s the state of native Google Home integration across the brands you’re most likely to be looking at, based on each manufacturer’s published documentation and the Google Home action directory.

The takeaway: unless you have SolarEdge, your route to voice control runs through either smart plugs (for the appliance side) or Home Assistant (for actual generation data). For the trade-offs between specific brands more broadly, our reviews of SolarEdge and GivEnergy cover the monitoring and automation angles in detail.

04Smart plugs: the entry route

For most people, the practical question isn’t “what is my solar producing?” because the inverter app already shows that perfectly well. The practical question is “can I tell Google to switch the dishwasher on for two hours because the sun is out?” That’s a smart-plug job, and it costs less than a takeaway.

Energy-monitoring smart plugs are the sweet spot. They sit between an appliance and the wall, give Google Home control of switching, and (on the better models) report power consumption back to the manufacturer’s app. You won’t get true automatic surplus diversion without Home Assistant, but you’ll get reliable voice control of whatever’s plugged in.

The voice commands themselves are simple Google Home Routines once the plugs are connected. You give the plug a sensible name in the manufacturer app (“dishwasher” rather than “Tapo P110-3F8A”) and from then on you can say “Hey Google, turn on the dishwasher”. Time-based automations like “every weekday at 11am, turn on the dishwasher” sit in the Routines tab of the Google Home app.

For the timing logic on when to actually run things, our guide to the best times to use electricity with solar covers when surplus is most likely versus when peak grid prices kick in.

05The Home Assistant route (with Nabu Casa)

If you’ve got a technical bent, the appetite for a weekend project, and you want genuine “if solar greater than 2 kW then turn on appliance X” behaviour, Home Assistant is the answer. It’s an open-source home automation platform that runs locally on a small computer in your house, talks directly to your inverter, and exposes everything to Google Home through their official cloud bridge called Nabu Casa.

The reason Nabu Casa matters specifically for Google Home is that Google’s smart home API is more locked down than Alexa’s. Self-hosting the Google Assistant integration is doable but fiddly. Nabu Casa charges £6.50 a month (roughly £78/year) and in return handles the secure tunnel, the certificate management, and all the Google Cloud paperwork that would otherwise eat your weekend. For most people, it’s the obvious choice.

The hardware shopping list is small. A Raspberry Pi 4 or 5 with a microSD card (£70-£90) runs Home Assistant happily. Or buy a Home Assistant Green appliance for around £100 that comes pre-configured. The serious time investment is the setup itself: getting your inverter integration working, building dashboards, writing automations. Plan for a long Saturday.

Once Home Assistant is running, you connect Nabu Casa, link Google Home, and any sensor or switch you’ve created in HA becomes voice-accessible. That’s how you get genuine, useful exchanges like “Hey Google, what’s my solar production?” answered with a real number from your actual inverter.

Tesla Powerwall owners get the cleanest version of this story. Home Assistant has had an official Powerwall integration since 2020, and it auto-discovers the gateway on your network. From there it’s three or four clicks to bridge battery state, solar generation and grid flow into Google Home. Worth checking our breakdown of the best solar batteries for which models play nicest with home automation if you’re still choosing.

06Voice commands that actually work

Worth setting expectations. Even with a polished setup, Google Home is a thin layer over your existing kit. Here’s a sample of commands that work reliably once you’ve built the right plumbing, plus a note on what the words actually trigger behind the scenes.

07What voice control gives you, and what it doesn’t

The internet-down caveat is worth dwelling on. Almost every voice integration, including Nabu Casa, depends on a round-trip to the cloud. Your inverter’s local app probably keeps working when broadband drops; Google Home won’t. If voice control during a power cut is part of your reasoning (a fair question for some battery owners considering solar battery backup for power cuts), Home Assistant’s local control is the only option that survives offline.

08Setting it up: the easy route

Most readers will get the most value from Route 1 – smart plugs plus Google Home Routines. If you’ve already got a Nest Mini or Hub on the kitchen counter, this is a 30-minute job from cold.

1. Buy two TP-Link Tapo P110 plugs (about £25 the pair). These will go on your most run-when-cheap appliances – typically the dishwasher and washing machine, or the EV charger and immersion if you have those.
2. Set up the plugs in the Tapo app first. Give them clear names (“dishwasher”, “washing machine”). The Tapo app guides you through pairing each plug to your Wi-Fi.
3. Open the Google Home app. Tap “Devices”, “Add”, “Works with Google”, then search for “Tapo” (or “Kasa” if you went that way). Sign in once and your plugs appear as devices.
4. Test the basics. “Hey Google, turn on the dishwasher” should now work straight away.
5. Build a Routine. In the Google Home app, go to Routines and create one that turns on your dishwasher every weekday at 11am (when solar surplus is most likely on a sunny day). Add an evening routine that turns it off if you tend to forget.
6. Optional: bundle plugs into a “solar surplus” group. Create a Routine that switches multiple plugs at once with one voice command, so “Hey Google, run solar surplus” turns on everything you want running when the sun’s out.

That’s 80% of what most people actually want from voice-controlled solar, done in under an hour for less than the cost of a decent dinner. If you want to go further with surplus-driven automations – things like “only run the immersion when there’s at least 2 kW of free solar” – you’re now in Home Assistant territory, and that’s a different weekend. Worth pairing with the inverter-monitoring side of things via our solar generation tracker if you want to keep tabs on it all in one place.