Why Tesla

Tesla. One box does what most systems need three for.

One box, one app — storage with the solar inverter built in.

Premium tier · Fixed block, expandable · Matched across 342 US cities · Last reviewed 2026-09-05

Find Tesla Powerwall installers in your state

Is a Tesla Powerwall right for your house?

Powerwall is no longer the only serious answer, and it is still a straightforward one. It is the most widely installed home battery in the US, has the most polished app in the category, and is the unit most utility battery programs were designed around. What it has given up is the price argument at larger sizes and the retrofit argument against AC-coupled rivals. If you are buying solar and storage together and value a proven product over the lowest cost per kilowatt-hour, it remains an easy shortlist.

The decision Powerwall forces is about the solar, not the battery. Because the solar inverter lives inside the unit, your panels are strung directly into it — efficient when the system is designed as a whole, wasteful when a retrofit is done lazily. A home with a healthy recent inverter has to weigh stranding it. Everything else about the product is deliberately simple: one box, one app, one manufacturer accountable for the lot.

Where Tesla Powerwall actually sits in the US market

The most-quoted home battery on US installer quotes, though no longer the only serious choice.

  • Market tier — Premium tier.
  • Capacity — Fixed block, expandable.
  • Most cross-shopped against — FranklinWH aPower 2.

Tesla has more residential batteries on American walls than any other brand, which shows up in the things that only become visible years in — an established service channel, installers who have seen the failure modes, and a fleet old enough to have a track record. The certified-installer model also means the people fitting it have been through the manufacturer’s own training. That is a genuine advantage, and it is not a substitute for checking who is actually turning up at your house.

The trade-offs you accept with Tesla Powerwall

  • Fixed blocks rather than fine increments. Sizing moves in whole units, so a household needing a little more capacity often ends up buying noticeably more than it needed.
  • Cost per kilowatt-hour worsens as the system grows. At larger capacities modular stacks are materially cheaper, which is why big Powerwall systems are a harder argument than single-unit ones.
  • The integrated inverter is a commitment. It is the product’s best feature on a new install and its awkward feature on a retrofit onto solar you already own.
  • It expects a live internet connection. The full warranty term depends on it, so signal at the mounting position is part of the design rather than an afterthought.
  • Backup scope is a design decision. Whole-home backup depends on your loads and your service panel; a partial-home backup that nobody explained is the most common owner complaint.
  • Simplicity is the product. If you want to tune every parameter, this is the wrong battery — the appeal is that most households never need to open anything beyond the app.

How Tesla Powerwall compares with the rest of the shortlist

These are the other brands Shortlist Solar matches installers for. The differences are structural rather than a ranking — the right answer depends on your roof, your service panel and what you want the battery to do.

  • FranklinWH (premium) — A whole-home energy manager first, a battery second — and it works with the solar you already have.
  • Enphase (premium) — AC-coupled and built from microinverters — the retrofit battery that works with the solar you already have.
  • SolarEdge (premium) — The battery for a SolarEdge system — DC-coupled, quiet, and pointless without the matching inverter.
  • Sigenergy (mid-market) — Five things in one stack — solar inverter, battery, EV DC charger and the controller that runs them.

Where you can get a Tesla Powerwall installed

Shortlist Solar matches installers in 342 cities across 46 states. Pick your state for the local list, or go straight to the full city directory.

In one of the biggest cities? Go straight to the Tesla Powerwall page for your metro area:

All Tesla Powerwall battery installer locations, city by city

Tesla Powerwall questions, answered for the US

Is a Powerwall still the safe choice in 2026?
It is still the most proven choice, which is not quite the same thing. Nothing else has been on American walls in these numbers for this long, and that history is worth something real when you are buying hardware meant to last a decade. Where it is no longer the safe default is on price at larger capacities and as a retrofit. Households buying solar and storage together are the case where it remains hard to argue against.
I already have solar. Should I rule Powerwall out?
Not automatically, but go in with clear eyes. The value of Powerwall 3 is largely in its integrated solar inverter, so bolting it onto a healthy existing system either re-terminates your panels into it or leaves some of that value unused. Ask the installer to quote an AC-coupled alternative alongside it so you can see what keeping your current inverter is worth.
Does this site sell Tesla Powerwalls?
No. We do not sell hardware or take a margin on your system, so we have no commercial reason to steer you to a particular brand. We match you with 2-3 vetted installers — typically 2+ years in business, with a track record of decent reviews — prioritizing Tesla-certified teams where you have asked about Powerwall. You deal with them directly and the service is free for homeowners.
What should I ask a Powerwall installer that I would not ask otherwise?
Two things specific to this product. First, ask them to list by name the circuits that stay live in an outage and whether that needs a backup sub-panel. Second, ask how your solar array will be strung into the integrated inverter, because a lazy retrofit design can leave panel capacity unused. Both answers should be in writing before you compare prices, since they are where two Powerwall quotes actually differ.
Is it worth buying Powerwall now that other brands compete hard on price?
Being undercut is not evidence of a worse product. What changed is that AC-coupled and modular systems arrived with better pricing at scale and cleaner retrofits, which took two of Tesla’s arguments away. What did not change is the installed base and the utility-program support. Judge it on whether those two things matter to your household rather than on the price table.
Can I get a Powerwall installed anywhere in the US?
Effectively yes — this is one of the practical advantages of the most widely installed product in the market. Certified installers operate in every state, including rural areas where newer brands have thinner coverage. Remote installs still need a conversation about service response, so ask where the nearest certified crew is actually based rather than where the company advertises.
How many installers will contact me?
Between two and three. Your details do not go into a bidding pool and you will not spend a fortnight fielding calls. Matching a small number means each installer has a real chance of winning the work, which is what makes it worth their time to design the system properly rather than send a templated price.

Deeper reading on Tesla Powerwall

Sources and last review

Brand research compiled by the Shortlist Solar team and reviewed against the sources below. We hold no stock and take no margin on your system, so nothing here is written to move a particular box.