Battery sizing without the guesswork

Visualise how every solar and battery combination performs against real usage.
No contract + no credit card required
221B Baker Street, London TOU tariff 15.0 kWh
12am6am12pm6pm12am
Solar direct From battery Grid import Charging battery Exported
Annual saving
$ 0 1 2 3 4 5 6 7 8 9 , 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
Discounted payback
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 . 0 1 2 3 4 5 6 7 8 9 yrs
Exported
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 , 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 kWh/yr
Battery advisor
Not recommendedRecommended
19.8 16.5 13.2 9.9 6.6
0510152025
Battery (kWh)
Solar (kW)
Selected
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 kWh
Self-sufficiency
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 %

From sizing to sign-off

Choose the combination that fits, prove it against a real week of usage, and export the diagrams your installer and inspector need.
Battery advisor
Not recommendedRecommended
19.8 16.5 13.2 9.9 6.6
0510152025
Battery (kWh)
Solar (kW)
Selected
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 kWh
Self-sufficiency
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 %

Recommend batteries with confidence

Compare solar and battery combinations in one simple heat map.

Pylon helps your team find the best system combination for each customer, so every battery recommendation is backed by real data.

Thu 14:00 Solar 5.67 kW Battery 0.00 kW Export 4.20 kW Charge 100%
6 kW 0 -5 kW 100% 50% 0% Mon Sun

Simulate battery performance

Model how each battery charges and discharges across a typical year, soaking up midday solar and topping up on cheap off-peak rates before the evening peak.

See grid imports, exports and time-of-use tariff impacts, so your team can explain battery savings in a way that customers understand.

Backup-ready schematic diagrams

Pylon draws hybrid and AC-coupled configurations, battery isolation and backup circuits straight from the design you already built.

Make battery value easy to understand

See the financial impact

Whether solar is new or already installed, show how batteries, a new energy plan and off-peak charging lower the bill.

Fully managed components

Find battery storage and hybrid inverter options by capacity, brand and backup capability.

Battery Storage

Search for a battery storage model
Tesla
Powerwall 3
Sigenergy
SigenStor BAT 8.0
Sungrow
SBR256

Solar panels

Search for panel model
Jinko
Tiger Neo 440
Longi
Hi-MO6 Scientist 450M
Winaico
WST-NGX-D3

Compare every battery outcome

Compare bills, payback, self-sufficiency, backup autonomy and cycling.

Recommended
Self-sufficiency 78%
Bill reduction $3,820
Backup 12-18h
Cycles 210/yr
Payback 6.4y

Priced on real supplier tariffs

Simulate future savings against the customer's actual energy tariff, including peak, off-peak and export rates.

Richard Christian
Richard Christian
Head of Sales UK of Solar Power UK

To be fair it's the best system I've used for generating quotes. They're far more professional looking, adaptable and editing is awesome.

Design and sell your first battery system in minutes