Siemens Solar modules: datasheets, wiring and the field record

A working reference for the SM, SP, SR and ST modules Siemens Solar sold in the 1990s and early 2000s: the original specifications, calculators that use them, and what the installations looked like.

Browse the 16 modulesArray calculator
16modules with full datasheets
25installation notes, checked
6application groups
1998CIS thin film enters series production

What do you need to do?

Identify an unmarked module
Identify an unmarked moduleMatch Voc, Isc and frame size against all 16 models
Size a string and a controller
Size a string and a controllerCold-weather Voc, charging headroom, battery size
Compare the modules
Compare the modulesPower, weight, size and power density
Replace or expand a module
Replace or expand a moduleWhat to test, how to match voltage, what to buy
Wire a string correctly
Wire a string correctlySystem voltage limits, 6 V versions, bypass diodes

From the field record

Siemens published short installation notes for its systems. We checked their arithmetic where the notes give enough numbers.

1,016 kW on six trade-fair halls
1,016 kW on six trade-fair hallsMunich, 7,812 modules: the numbers add up
A repeater at 4,200 metres
A repeater at 4,200 metres188 modules, a 4,000 Ah battery and a diesel backup
440 gas-field monitors on solar power
440 gas-field monitors on solar powerTexas well-head telemetry and Sahel water pumps
20 days across the Pacific on 42 watts
20 days across the Pacific on 42 wattsThree hours of generator for the whole passage
Homes off the grid and on it
Homes off the grid and on itPalau, a California house, 100 Sacramento rooftops

Illustrative footage of a solar module on a remote mast. This is generated video, not a recording of a real installation; the hero background video on this page is generated too.

Siemens SM55 / SM5055 W
Siemens SM55 / SM5017.4 V Vmp · 21.7 V Voc
Siemens SP75 / SP7075 W
Siemens SP75 / SP7017 V Vmp · 21.7 V Voc
Siemens SM110 / SM100110 W
Siemens SM110 / SM10017.5 V Vmp · 21.7 V Voc
Siemens SR100 / SR90100 W
Siemens SR100 / SR9017.7 V Vmp · 22 V Voc
Siemens SM66 W
Siemens SM615 V Vmp · 19.5 V Voc
Siemens ST4040 W
Siemens ST4016.6 V Vmp · 22.2 V Voc

Where the information comes from

Everything on these pages comes from Siemens Solar’s own datasheets, application notes and press releases. The datasheet numbers were checked by script against the source text, and anything we calculate is labelled as calculated. Read about this reference and the editorial policy, or follow the history of Siemens Solar in its own press releases.