Why homeowners choose Powerwall 2
Retro-fit friendly
Load-shedding ready
80%+ savings
13.5kWh usable
Smart app
Special offers
Powerwall App — Know everything at a glance
Check charge level, power flows, backup reserve and get outage notifications — from anywhere.
- Backup reserve slider to protect capacity during load-shedding
- Outage alerts with time-remaining estimates and post-event summaries
How Tesla Powerwall 2 works for your home
Connect to existing solar, store 13.5kWh daily, and ride through outages with app-controlled backup.
Connect
Retro-fit to most solar systems — or run grid-charge only.
Store
13.5kWh usable, 100% DoD certified — charge by day, use at night.
Backup
5kW continuous / 7kW peak to keep essentials running during outages.
Optimise
Set reserves, view savings and get outage summaries in the app.
How Tesla Powerwall 2 works for your home
Connect to existing solar, store 13.5kWh daily, and ride through outages with app-controlled backup.
Connect
Retro-fit to most solar systems — or run grid-charge only.
Store
13.5kWh usable, 100% DoD certified — charge by day, use at night.
Backup
5kW continuous / 7kW peak to keep essentials running during outages.
Optimise
Set reserves, view savings and get outage summaries in the app.
Tesla Powerwall 2 — Technical specifications
Capacity & Power
- Storage: 13.5kWh usable (14kWh total)
- Power: 5kW continuous / 7kW peak (up to 30 minutes)
- Round-trip efficiency: 90%
- Depth of discharge: 100% daily
Environment & Mounting
- Operating temp: –20°C to 50°C (recommended 0–30°C)
- Enclosure: IP65 outdoor-rated
- Mounting: Wall or floor
- Dimensions/Weight: 1150×753×147mm / 114kg
Electrical & System
- Electrical: Single-phase
- Gateway: Connects up to 10 Powerwalls
- Warranty: 10 years
Pricing (excl. VAT)
Powerwall 2 Battery
Backup Gateway
Battery + Gateway
Typical turnkey backup installation: ~ZAR 150,000 (excl. VAT, subject to exchange rate). Final quote after site visit includes installation, registration and required wiring.
Consultation & installation by certified experts
Treetops is a Certified Installer for Tesla Powerwall 2. Our consultants and in-house teams are trained by Tesla for compliant, high-quality installations.
- Manufacturer QA — photos & diagrams reviewed and approved
- Full compliance, commissioning & documentation
- After-sales support and remote monitoring
Explore Our Powerwall 2 Installations
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Frequently asked questions
Can Powerwall work without solar panels?
Yes. It can operate in “Backup Only” mode and recharge from the municipal grid to prepare for outages.
How much can I save with Powerwall?
Combined with solar, many homes cut grid purchases by 80%+ by using stored daytime solar at night.
Can I power my whole home during load-shedding?
Most essentials can be backed up. Large loads (e.g., oven, stove, geyser) are typically excluded for best performance.
Is it outdoor-rated?
Yes. Powerwall 2 is IP65, suitable for outdoor mounting.
What’s the warranty?
10-year warranty from Tesla for the battery.
What about three-phase homes?
Powerwall 2 is single-phase. It can back up selected circuits; our consultants will advise on true 3-phase appliances.
Ready to plan your Tesla Powerwall 2 system?
Consultation by appointment only. We’ll assess your needs and design a tailored solution.