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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsHome Assistant software is free, and neither a dedicated hub nor a cloud subscription is mandatory. The less obvious costs come from keeping a computer running, buying compatible devices and any protocol radios they need, and spending time setting up and maintaining a system that grows over time. Those costs vary by household; there is no established universal lifetime total.
Is Home Assistant free?
Yes. Home Assistant says its full software is free, with no subscription required and no features locked behind a paywall. Costs arise from optional hardware, accessories, and hosted services—not a fee to use the core system. The project says Home Assistant “works fully without” its cloud subscription. Home Assistant FAQ and Home Assistant Cloud
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What are the main costs?
- A computer that stays on: Use suitable hardware you already own, or buy a dedicated host.
- Smart devices: Budget for the lights, sensors, switches, locks, thermostats, cameras, or other equipment you want to control. Prices and compatibility vary; there is no comparable device basket that establishes a typical total.
- Protocol radios or bridges: Buy one only if your chosen devices require it and you do not already have compatible equipment.
- Electricity: The host runs continuously, so its actual power draw contributes to your bill.
- Optional cloud service: Pay only if its remote-access, voice, or other hosted features are useful to you.
- Your time and replacements: Setup, configuration, upkeep, and eventual device replacement are plausible household costs, but typical hours and replacement rates are not established.
Do you need Home Assistant Green or a Raspberry Pi?
No particular computer is required. Home Assistant recommends Green for most people, but also lists a Raspberry Pi, mini PC, NUC, or virtual machine as reasonable options when you have suitable hardware. Whatever you choose needs to stay on all the time. Home Assistant hardware guidance
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Home Assistant Green
Green is a dedicated, ready-to-use host. Home Assistant lists recommended pricing of $199 in the United States and €179 in Europe in 2026; the product page says the USD price excludes taxes, the EUR price includes applicable VAT, and local prices differ. These are recommended regional prices, not a guaranteed checkout price. Home Assistant Green
#1 Best Overall
- 💡 EASIEST WAY TO GET STARTED WITH HOME ASSISTANT - With Home Assistant already installed, it only requires plugging the included power supply and Ethernet cable to get started.
- ✅ OFFICIAL - This official Home Assistant hardware is built and supported by Nabu Casa, the team driving the development of Home Assistant.
- 🏡 DESIGNED FOR THE HOME - The small, fanless, and silent design packs a quad-core processor, 32GB of storage, and 4GB of RAM.
- 📱 ONE HUB TO CONTROL THE WHOLE HOME - Cut down hub and app clutter and control your whole home from Home Assistant Green.
- 🤖 AUTOMATE EVERYTHING - Make all the devices in your home work in harmony - have your lights dim when you start watching a movie, or turn off your heat when you’re away from home.
Hardware you already own
If you have a suitable always-on computer, using it can make the controller’s incremental cost $0. That does not guarantee the lowest overall cost: measure its power use rather than assuming it will use less electricity than Green. A computer’s draw depends on its configuration and workload.
How much electricity does Green use?
Home Assistant specifies approximately 1.7 W at idle and 3 W under load. At a constant 1.7 W for 8,760 hours, the arithmetic is about 14.9 kWh for a year. This is a calculation from the published idle specification, not a measured annual bill; multiply actual kilowatt-hours by your electricity rate to estimate cost. Home Assistant Green
Rank #2
- 🌍 𝗔𝘀𝘀𝗲𝗺𝗯𝗹𝗲𝗱 𝗶𝗻 𝘁𝗵𝗲 𝗨𝗦𝗔 – Built and quality-checked in Texas with a 2-Year US-Based Limited Warranty for dependable long-term support.
- 🏠 𝗛𝗼𝗺𝗲 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝘁 𝗢𝗦 𝗣𝗿𝗲𝗶𝗻𝘀𝘁𝗮𝗹𝗹𝗲𝗱 – Ready to power your smart home locally with fast, reliable automation and no mandatory cloud dependence. A truly powerful smart home hub.
- ⚙️ 𝗗𝗲𝘀𝗶𝗴𝗻𝗲𝗱 𝗳𝗼𝗿 𝗖𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻 – Built for reliable 24/7 performance powering virtualization, automation, containers, storage, and professional workloads.
- 🧠 𝗖𝗵𝗼𝗼𝘀𝗲 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗼𝗿 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 – Available with AMD R2314 (efficient 4-core), AMD R2514 (8-thread multitasking), or Intel Core i3-1215U (hybrid 6-core performance) to match your workload.
- 💾 𝗘𝘅𝗽𝗮𝗻𝗱𝗮𝗯𝗹𝗲 𝗥𝗔𝗠 & 𝗨𝗽 𝘁𝗼 𝟰𝗧𝗕 𝗡𝗩𝗠𝗲 𝗦𝘁𝗼𝗿𝗮𝗴𝗲 – Dual SO-DIMM slots support up to 64GB RAM. Dual NVMe SSD slots support up to 4TB total storage. Select installed memory and storage based on your needs.
Will you need a Zigbee or Thread radio?
Only if your device plan calls for one and you do not already have compatible equipment. Green can use the Home Assistant Connect ZBT-2 for Zigbee or Thread, but the accessory is not required for every home or device. Matter devices using Thread need a Thread border router, which you may already have. Home Assistant’s Green documentation says ZBT-2 Thread support is under development, so check current support before buying for a Thread setup. Home Assistant Green
Make a list of the devices you want first, then check their protocol and compatibility. A radio is an avoidable expense if your intended devices do not need it; conversely, a device’s low purchase price may not tell you the whole cost if it requires an additional bridge or radio.
Rank #3
- 🌍 𝗔𝘀𝘀𝗲𝗺𝗯𝗹𝗲𝗱 𝗶𝗻 𝘁𝗵𝗲 𝗨𝗦𝗔 – Built and quality-checked in Texas with a 2-Year US-Based Limited Warranty for dependable long-term support.
- 🏠 𝗛𝗼𝗺𝗲 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝘁 𝗢𝗦 𝗣𝗿𝗲𝗶𝗻𝘀𝘁𝗮𝗹𝗹𝗲𝗱 – Ready to power your smart home locally with fast, reliable automation and no mandatory cloud dependence. A truly powerful smart home hub.
- ⚙️ 𝗗𝗲𝘀𝗶𝗴𝗻𝗲𝗱 𝗳𝗼𝗿 𝗖𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻 – Built for reliable 24/7 performance powering virtualization, automation, containers, storage, and professional workloads.
- 🧠 𝗖𝗵𝗼𝗼𝘀𝗲 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗼𝗿 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 – Available with AMD R2314 (efficient 4-core), AMD R2514 (8-thread multitasking), or Intel Core i3-1215U (hybrid 6-core performance) to match your workload.
- 💾 𝗘𝘅𝗽𝗮𝗻𝗱𝗮𝗯𝗹𝗲 𝗥𝗔𝗠 & 𝗨𝗽 𝘁𝗼 𝟰𝗧𝗕 𝗡𝗩𝗠𝗲 𝗦𝘁𝗼𝗿𝗮𝗴𝗲 – Dual SO-DIMM slots support up to 64GB RAM. Dual NVMe SSD slots support up to 4TB total storage. Select installed memory and storage based on your needs.
Do you have to pay for Home Assistant Cloud?
No. Core local operation does not require a subscription. Home Assistant Cloud adds hosted conveniences including remote access, Google Assistant and Amazon Alexa integrations, voice processing, and offsite backups. Home Assistant Cloud
Nabu Casa’s pricing page displayed £6.50 per month or £65.00 per year and a 31-day trial when accessed in 2026. Those are the page’s GBP prices, not a global price promise. Nabu Casa pricing
Rank #4
- 🌍 𝗔𝘀𝘀𝗲𝗺𝗯𝗹𝗲𝗱 𝗶𝗻 𝘁𝗵𝗲 𝗨𝗦𝗔 – Built and quality-checked in Texas with a 2-Year US-Based Limited Warranty for dependable long-term support.
- 🏠 𝗛𝗼𝗺𝗲 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝘁 𝗢𝗦 𝗣𝗿𝗲𝗶𝗻𝘀𝘁𝗮𝗹𝗹𝗲𝗱 – Ready to power your smart home locally with fast, reliable automation and no mandatory cloud dependence. A truly powerful smart home hub.
- ⚙️ 𝗗𝗲𝘀𝗶𝗴𝗻𝗲𝗱 𝗳𝗼𝗿 𝗖𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻 – Built for reliable 24/7 performance powering virtualization, automation, containers, storage, and professional workloads.
- 🧠 𝗖𝗵𝗼𝗼𝘀𝗲 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗼𝗿 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 – Available with AMD R2314 (efficient 4-core), AMD R2514 (8-thread multitasking), or Intel Core i3-1215U (hybrid 6-core performance) to match your workload.
- 💾 𝗘𝘅𝗽𝗮𝗻𝗱𝗮𝗯𝗹𝗲 𝗥𝗔𝗠 & 𝗨𝗽 𝘁𝗼 𝟰𝗧𝗕 𝗡𝗩𝗠𝗲 𝗦𝘁𝗼𝗿𝗮𝗴𝗲 – Dual SO-DIMM slots support up to 64GB RAM. Dual NVMe SSD slots support up to 4TB total storage. Select installed memory and storage based on your needs.
Nabu Casa announced on October 2, 2026 that Home Assistant Cloud is scheduled to become Home Assistant Link on December 2, 2026. The announcement says subscribers will not need to take action. Until that date, use the Cloud name; after the change, check the service’s current naming and terms. Nabu Casa announcement
Why can the total be higher than expected?
The hub is only one line in the budget. A system can accumulate devices across rooms, protocol-specific accessories, and replacements over time. Configuration also takes owner time, particularly when adding integrations and building dashboards. These are cost drivers, not a quantified estimate: available official figures do not establish a representative lifetime total, typical annual maintenance hours, or device failure rate.
Best Value
- 🌍 𝗔𝘀𝘀𝗲𝗺𝗯𝗹𝗲𝗱 𝗶𝗻 𝘁𝗵𝗲 𝗨𝗦𝗔 – Built and quality-checked in Texas with a 2-Year US-Based Limited Warranty for dependable long-term support.
- 🏠 𝗛𝗼𝗺𝗲 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝘁 𝗢𝗦 𝗣𝗿𝗲𝗶𝗻𝘀𝘁𝗮𝗹𝗹𝗲𝗱 – Ready to power your smart home locally with fast, reliable automation and no mandatory cloud dependence. A truly powerful smart home hub.
- ⚙️ 𝗗𝗲𝘀𝗶𝗴𝗻𝗲𝗱 𝗳𝗼𝗿 𝗖𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻 – Built for reliable 24/7 performance powering virtualization, automation, containers, storage, and professional workloads.
- 🧠 𝗖𝗵𝗼𝗼𝘀𝗲 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗼𝗿 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 – Available with AMD R2314 (efficient 4-core), AMD R2514 (8-thread multitasking), or Intel Core i3-1215U (hybrid 6-core performance) to match your workload.
- 💾 𝗘𝘅𝗽𝗮𝗻𝗱𝗮𝗯𝗹𝗲 𝗥𝗔𝗠 & 𝗨𝗽 𝘁𝗼 𝟰𝗧𝗕 𝗡𝗩𝗠𝗲 𝗦𝘁𝗼𝗿𝗮𝗴𝗲 – Dual SO-DIMM slots support up to 64GB RAM. Dual NVMe SSD slots support up to 4TB total storage. Select installed memory and storage based on your needs.
Home Assistant estimates about 15 minutes for basic Green setup, plus another 30–60 minutes to add initial integrations and a dashboard. A custom installation on a Raspberry Pi, mini PC, or virtual machine is estimated at 1–2 hours. These are setup estimates, not a measure of ongoing annual work. The project publishes a stable release on the first Wednesday of each month and says an automatic backup occurs before each update. Home Assistant FAQ
How to estimate your own budget
- Choose the host. Start at $0 incremental cost if you already own suitable always-on hardware; otherwise compare Green’s local price with a self-sourced host.
- Inventory intended devices. List each category and check compatibility, protocol, and whether local control matters. Do not treat a device-category price as established without checking actual products.
- Add only required radios. Account for a Zigbee or Thread radio or bridge only if your devices need it and you lack compatible equipment.
- Decide whether hosted features are worth paying for. Include Cloud/Link only if you want its remote access, voice integrations, or other hosted features.
- Estimate electricity from actual draw. Use measured average watts × hours ÷ 1,000 × your price per kWh. Green’s published idle figure is a reference, not every household’s consumption.
- Allow for your own time and future changes. Setup and upkeep depend on the system you build; no representative maintenance-hours or replacement-spend figure is established.
The practical comparison is not simply “free software versus paid hub.” Compare upfront host cost, measured idle power, whether you already own the hardware, required radios, intended devices, internet dependence, optional subscription features, and the effort you are willing to spend configuring and maintaining the system.
Quick Recap
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