Independent research, updated September 29, 2026. Some product links are affiliate. No test lab. How we work
Costs · no 30% federal haircut

What a home battery actually costs in 2026

The residential 25D credit is gone for new homeowner-owned installs. These figures are hardware list snapshots plus typical electrical work. They are not bids.

Hardware you can look up today

ItemWhat you getList / sale (prices dated per row)Source
EcoFlow Ultra X (1 inv + 2 bat)12 kW / 12 kWh$7,999 (14 Oct 2026)us.ecoflow.com
Ultra X + Smart Home Panel 3same + 32-circuit panel$10,999 (14 Oct 2026)us.ecoflow.com
Ultra X 4-bat + SHP312 kW / 24 kWh$14,399 (19 Oct 2026)us.ecoflow.com
Ultra extra battery6,144 Wh$2,299 add-on / $2,399 alone (27 Sep 2026)us.ecoflow.com
DELTA Pro 34 kW / 4 kWh$2,799 sale / $3,299 list (checked 11 October 2026)us.ecoflow.com
Anker SOLIX F3800 Plus6 kW / 3.84 kWh$2,399.99 Halloween sale / $2,999.99 list (checked 26 Oct 2026, sale ends 1 Nov 2026)ankersolix.com
EcoFlow 400 W folding panelportable PV$699 (EcoFlow US, 25 Oct 2026)us.ecoflow.com
EcoFlow transfer kit 306A16-circuit · electrician$399 (21 Oct 2026)us.ecoflow.com
Smart Home Panel 332 circuits · 10-year warranty$3,299 (EcoFlow US, 27 Sep 2026)us.ecoflow.com
Powerwall 313.5 kWh / 11.5 kWQuote — hardware often mid-to-high four figures; installed commonly five figuresTesla + installer bids

EcoFlow pages showed some Ultra X bundles as sold out when checked. Availability is not the same as price.

Comparison (published specs)

Published specs and dated list prices, 15 September 2026. Confirm checkout. Tesla is installer-only.
System Path Usable energy Continuous power 240V Expandability Starting price Best for
Tesla Powerwall 3 Installer 13.5 kWh 11.5 kW · 185 LRA Yes (gateway) Tesla expansion packs Quote only Integrated wall appliance
EcoFlow DELTA Pro Ultra X Cart + electrician for SHP3 12 kWh start (2× ~6 kWh) 12 kW Yes Same-family extras; SHP3 is Ultra X only $7,999 / $10,999 with SHP3 Cart whole-home stack
EcoFlow DELTA Pro 3 Cart 4 kWh 4 kW Yes DP3 extras ($1,899). Do not mix with Ultra X or SHP3 $2,799 sale / $3,299 list (checked 11 October 2026) Expandable 240 V portable
Anker SOLIX F3800 Plus Cart 3.84 kWh 6 kW Yes BP3800 extras ($1,799.99 Halloween sale / $1,999.99 list, checked 26 Oct 2026, sale ends 1 Nov 2026) $2,399.99 Halloween sale / $2,999.99 list (checked 26 Oct 2026, sale ends 1 Nov 2026) First 240 V portable
BLUETTI EP900 + B500 Cart / DIY-leaning ~4.46 kWh usable per B500 9 kW (7.6 kW off-grid with 2× B500) Yes 2–8 B500 typical Confirm live kit price High-output well / shop

What a first buy actually is

Planning bands, not bids. Hardware specs checked 15 Sep 2026 (Anker prices checked 26 Oct 2026; DELTA 3 checked 19 October 2026) plus typical US residential electrical work. No 30% federal credit.
Job Typical hardware Hardware snapshot Labor / permit band Honest total
Fridge, internet, CPAP (cords) DELTA 3 or C2000 Gen 2 $629–$899.99 Halloween sale / $1,199.99 list (checked 26 Oct 2026, sale ends 1 Nov 2026) $0 on cords Under $1,200
Essentials + 240 V attempt F3800 Plus or DELTA Pro 3 $2,399.99 Halloween sale / $2,999.99 list (checked 26 Oct 2026, sale ends 1 Nov 2026) (F3800 Plus); DELTA Pro 3 $2,799 (checked 8 October 2026) $0 on cords; $800–$2,800 if you add a transfer/inlet F3800 Plus: $2,399.99 Halloween sale / $2,999.99 list (checked 26 Oct 2026, sale ends 1 Nov 2026), plus labor. DELTA Pro 3 side about $2,800–$5,600.
Selected house circuits Portable + $399 transfer kit or inlet Hardware + $399 $800–$2,800 electrician Often $3,000–$7,000
Automatic whole-home (cart) Ultra X + SHP3 $10,999 hardware $1,200–$3,500+ if the panel is healthy About $12,000–$16,000
Automatic whole-home (installer) Powerwall 3 Quote Included in the bid Commonly $11,000–$16,000+
What this size actually runs. Average-load planning only (kWh × 92% × 95%). A well pump’s start surge is not in these hours.
Size Fridge + internet Well (running) Partial house Whole-home HVAC
~4 kWh (F3800 Plus / DELTA Pro 3) ~17 hours ~3.5 hours (start is 6–9 kW) ~2 hours No. Shed HVAC.
~12 kWh (Ultra X starter) ~2 days ~10 hours running if it can start ~6–7 hours Short automatic backup only. Not multi-day HVAC.
~20 kWh (4× B500 or Ultra extras) ~3–4 days ~16 hours running ~11 hours Still not a silent whole-home week. Plan to shed.

Labor that does not show on the product page

Critical-loads subpanel / transfer$800–$2,800
Licensed labor, simple job$1,200–$3,500
Permit / inspection$200–$1,000
Panel upgrade if needed$1,500–$4,500

Ranges from typical US residential electrical work, not a survey we ran. Get three local quotes.

Worked example (not a quote)

Ultra X + SHP3 hardware $10,999 + $2,000 labor/permit ≈ $13,000 out the door if the panel is healthy. A year ago many articles would have shown ~$9,100 after 30%. That subtraction is no longer valid for a 2026 homeowner-owned system.

FAQ

Why don’t these numbers subtract 30%? +
Is $10,999 the out-the-door Ultra X + SHP3 price? +
Why is there no EP900 total? +

If the number above is too high, a portable covering fridge, internet, and medical devices is the rational first spend. $2,399.99 Halloween sale / $2,999.99 list (checked 26 Oct 2026, sale ends 1 Nov 2026) on the F3800 Plus. DELTA Pro 3 is $2,799 (checked 11 October 2026).

View F3800 Plus on Anker View DELTA Pro 3 on EcoFlow
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