Powering a tiny home: on-grid, off-grid or hybrid
Updated 4 Nov 2026. Tiny homes use far less energy than a typical house, which makes solar and battery power realistic. This guide covers your three main options and links to detailed guides.
1. Three ways to power a tiny home
- On-grid: a permanent mains connection, or "shore power" from a lead to a nearby building. It's the simplest and cheapest per kWh, but it needs a site with a connection and you lose power in blackouts.
- Off-grid: solar panels, a battery bank, an inverter and often a backup generator. It works anywhere sunny, but needs careful sizing and the most up-front gear.
- Hybrid: grid or shore power plus solar and a battery. You get backup in outages and lower bills, and it suits tiny homes that move between sites.
2. Start with your daily kWh
Add up the watts × hours for each appliance. Estimated daily use for a tiny home:
| Lifestyle | Estimated daily use |
|---|---|
| Minimal (LED lights, phone and laptop, 12 V fridge, gas cooking) | ~1 to 2 kWh |
| Typical (all-electric fridge, induction cooking sometimes, TV, water pump) | ~3 to 6 kWh |
| All-electric (heat pump, electric hot water, EV or e-bike charging) | ~8 to 15+ kWh |
All figures on this page are estimates for planning. Real use depends on climate, appliances and habits.
Use the runtime calculator and the appliance load table.
3. Detailed guides
A fast-growing worldwide market
Analysts disagree on the size of the tiny home market because they count different things, but they agree it is growing:
- Dataintelo: US$3.9 billion in 2025, reaching US$7.8 billion by 2034 (8% a year), with North America at about 48% and Asia Pacific growing fastest.
- The Business Research Company: US$13.17 billion in 2025, growing to US$17.73 billion by 2030 (6.1% a year).
- Market Data Forecast: US$6.17 billion in 2025, reaching US$8.49 billion by 2034.
- In a 2024 IPX1031 survey of 1,010 Americans, 73% said they would consider living in a tiny home.
Because tiny homes use so little energy, solar and batteries are a natural fit, and good power planning is one of the first things to get right.
Tiny home rules by country (summary)
General information only, checked against official sources on 4 Nov 2026. Rules change and vary by state, province and council, so always confirm locally.
| Country / region | Key rule | Official source |
|---|---|---|
| New Zealand | A tiny house that is immovable and lived in long term is generally a building needing consent. Since 15 Jan 2026, a new single-storey standalone dwelling up to 70 m² can be built without building consent if it meets the exemption conditions, uses licensed professionals, and you get a PIM first and notify council at the end. | MBIE tiny houses · MBIE granny flat exemption |
| Australia (NSW) | A tiny house on wheels is usually a moveable dwelling/caravan. Approval exemptions are limited (for example short stays of up to 2 days in a row and 60 days a year). Otherwise expect a development application and Local Government Act s68 approval. | NSW Moveable Dwellings Regulation 2021 |
| Australia (Victoria) | A fixed "small second dwelling" up to 60 m² on a lot with an existing home often needs no planning permit, but a building permit is always required. | Victorian Building Authority |
| United States | Permanently occupied tiny houses fall under the International Residential Code (Appendix AQ, 400 sq ft or less, where adopted locally). Wheeled units built as Park Model RVs (ANSI A119.5, up to 400 sq ft) are for recreational or seasonal use, and local zoning decides where they can stay. | ICC tiny house white paper · RVIA |
| Canada | Year-round tiny homes must meet the local building code and zoning. RV-certified units (CSA Z240 RV) are not for permanent residence. | City of Calgary example |
| United Kingdom | A unit can legally be a "caravan" if movable and within 20 m × 6.8 m (3.05 m internal height). Living in one as a separate home usually needs planning permission. Ancillary use by the same household in a house's garden may not. | Caravan Sites Act 1968 s13 · GOV.UK caravan definition |
| France | A tiny house without foundations, quickly removable and used as a main home at least 8 months a year can count as a "résidence démontable", which still needs a planning declaration or permit. | Ordre des architectes (cites Code de l'urbanisme R111-51) |
| Germany | A permanently lived-in tiny house, even on wheels, is generally treated as a building that needs a permit under the state building code. | City of Munich guide (PDF) |
| Japan | A trailer house counts as a vehicle rather than a building only if it can be moved at any time and is legal on public roads, with no fixed stairs and only quick-disconnect utilities. Otherwise it needs building approval. | Hamamatsu City (Japanese) |
Electrical work: in most countries, mains wiring and grid-connected solar or batteries must be installed and certified by a licensed electrician. NZ example: WorkSafe DIY solar.
FAQ
Can a tiny home run fully off-grid?
Yes, with enough solar panels and battery storage for your daily kWh, plus a backup like a generator or shore power for long cloudy spells. See the solar and battery guides.
How much power does a tiny home use per day?
Our planning estimates are about 1 to 2 kWh for a minimal setup with gas cooking, about 3 to 6 kWh for a typical setup, and 8 to 15+ kWh if all-electric with heating, hot water and EV charging.
Do I need a permit or consent for a tiny home?
It depends on your country and whether it is treated as a building or a vehicle. See the rules table above and check with your local council.
Is a tiny house on wheels a vehicle or a house?
Often both: it must meet road rules to tow, and building or planning rules if lived in long term. NZ, Germany and Japan treat a long-term, fixed unit as a building.
Can I install solar myself?
Small low-voltage DC setups are often DIY-friendly, but mains-voltage and grid-connected work usually needs a licensed electrician.
Where to buy
Portable power and solar kits: Power stations at ALLPOWERS (US & CA) (affiliate link).
Home batteries, inverters and solar panels: we're still waiting on approval from more brands. Until then, use a reputable local installer.
Tiny home power guides: Overview · Solar · Batteries · Power supply · EV & e-bike charging