Live plant

Solar

The roof, the Victron chargers, the Smart Shunt, and the 24 V bank — drawn as they are wired, with live Instant Readout on top. Five 405 W panels (2,025 W) on the roof. Eight more from Oxford are bought and not fitted. Four SmartSolars: 100/30, 100/50, and two 150/45s. Heat for the tub is a load on this bank.

Read-only. Same Redis feed as the solar hot tub.

Right now

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No live signal

Bank

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Lowest live MPPT

State of charge

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Available for heat

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Surplus staging

Transfer flow

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meter not enabled

Yield today

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From Instant Readout

Logged generation

0.00 kWh

Public kWh archive

Heaters stage from Smart Shunt surplus. Dump uses leftover PV when the battery is full. Available is shunt charging watts plus any heaters already on; dump also counts leftover PV so a full battery does not clip the array. Last report never. Numbers are pushed from the Pi into Redis about every 30 seconds.

How the plant is wired

Five 405 W panels feed four Victron SmartSolar chargers. Those chargers share a 24 V bus. The Smart Shunt is the official meter on that bus. Heat for the tub is a load on the same bank.

Roof

405 W

→ 100/30

405 W

→ 100/30

405 W

→ 100/50

405 W

→ 100/50

405 W

→ 100/50

2,025 W rated on the roof. Two panels on the 100/30, three on the 100/50. The 150/45s are fitted and waiting for strings. Eight more panels from Oxford (£500) are bought and not installed.

Victron SmartSolar

100/30

SmartSolar MPPT 100/30

Off

2 × 405 W

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—

100/50

SmartSolar MPPT 100/50

Waiting

3 × 405 W

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150/45 A

SmartSolar MPPT 150/45

Off

No strings yet

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150/45 B

SmartSolar MPPT 150/45

Off

No strings yet

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—

Smart Shunt

500 A / 50 mV · official bank

Off

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— · —

24 V lithium bank

Two 12 V 100 Ah cores in series

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into / out of the battery

Every box in the plant

Fitted hardware, including chargers that are powered off. Live readings overlay when Instant Readout is up.

Five 405 W panels

2,025 W on the roof. Two on the 100/30, three on the 100/50. Eight more from Oxford are bought, not fitted.

SmartSolar MPPT 100/30

100 V, 30 A. Two panels. Fitted, currently powered off.

SmartSolar MPPT 100/50

100 V, 50 A. Three panels. Live charger.

SmartSolar MPPT 150/45 A

150 V, 45 A. Fitted. Off until a string is assigned.

SmartSolar MPPT 150/45 B

150 V, 45 A. Fitted. Off until a string is assigned.

SmartShunt 500 A / 50 mV

Official bank voltage, current, and state of charge.

24 V 100 Ah LiFePO4

Two Renogy 12 V 100 Ah Core packs in series. BMS stays in circuit.

Live chargers

Waiting for the next Instant Readout push.

4 charger(s) fitted but not reporting — they stay on the pictograph above.

History from Redis

Download CSV

Same store the hot tub page uses. Bank voltage prefers the Smart Shunt once it is in the archive.

PV power

PV chart fills after the next few Instant Readout reports.

Bank voltage

Voltage chart fills after the Smart Shunt or chargers report.

Daily yield

Daily yield appears after the first midnight roundup.

Heat, pump, and temperatures live on the solar hot tub page.