Solar panels and the hardest paradox to resolve
Solar energy is, in principle, the most democratic solution to the climate change problem. It generates decentralised energy, reduces dependence on fossil fuels and empowers households to be energy producers. But the solar energy supply chain has a paradox that keeps climate activists with democratic conscience awake at night: 80% of the world's solar panels are manufactured in China (EIU 2.12).
More specifically: 70% of polysilicon (the base material of solar cells) is manufactured in Xinjiang, the same Chinese region where forced labour of the Uyghur minority is documented. Xinjiang polysilicon feeds the manufacturing chain of almost all Chinese solar panel manufacturers: Longi, JA Solar, Trina, Canadian Solar (this one has a Canadian name but Chinese manufacturing), BYD.
Democratic alternatives exist but are more expensive. This article examines the residential renewable energy sector from the democratic origin perspective.
Solar panel components and their democratic origin
Polysilicon: the base material of solar cells. Democratic quality polysilicon manufacturers are Wacker Chemie (Germany, 8.58) — with factories in Burghausen, Bavaria — Hemlock Semiconductor (US, 7.85) and REC Silicon (Norway, 9.81). German and Norwegian polysilicon is significantly more expensive than Xinjiang polysilicon but of completely democratic origin.
Solar cells: the highest efficiency monocrystalline cells (mono-PERC, TOPCon, HJT) are manufactured mainly in China. Democratic exceptions are SunPower (US) with heterojunction (HJT) cells manufactured in the Philippines (6.28 — just above the threshold), and Panasonic HIT (Japan, 8.40) with heterojunction cells manufactured in Japan.
Panel glass: low-reflectance solar glass is manufactured by AGC (Japan, 8.40), Guardian (US, 7.85) or Pilkington NSG (Japan/UK, 8.40/8.28). Quality panels use glass from these manufacturers.
Aluminium frame: see previous articles — Norsk Hydro (Norway, 9.81) and Aleris (US) for the premium segment.
The inverter: the electronic component that converts solar DC to AC for the home. Democratic reference manufacturers are SMA Solar Technology (Germany, 8.58), Fronius (Austria, 8.30), Enphase Energy (US, 7.85) and ABB (Switzerland, 9.15).
Storage batteries and their democratic origin
Residential solar energy storage batteries have a supply chain centred on lithium, cobalt and LFP or NMC cathodes.
Lithium: battery lithium comes mainly from Australia (Greenbushes, Albemarle/Talison — 8.86), Chile (6.92 — marginal) and Argentina (6.90 — marginal). Australian lithium has the greatest democratic traceability.
Cobalt: 70% of world cobalt comes from the Democratic Republic of Congo (DRC, 1.88 — blocked). LFP (lithium iron phosphate) batteries don't use cobalt. This would be the most democratically favourable battery type. Tesla and BYD use LFP in their residential storage batteries.
Residential storage batteries with the greatest democratic traceability:
— Tesla Powerwall (US, 7.85): LFP cells of Panasonic (Japan) or proprietary Tesla origin (Nevada). US assembly. Price: €10,000–15,000 installed.
— sonnen eco (Germany, 8.58, Shell-owned): LFP batteries with Samsung SDI cells (South Korea, 8.09) or CATL (China — the democratic exception). Assembly in Wildpoldsried (Germany). Price: €10,000–20,000 installed.
— SMA Sunny Boy Storage (Germany, 8.58): storage system with German SMA inverters. Price: €8,000–15,000.
Panels with the greatest democratic traceability
SunPower Maxeon — US (7.85). The market's highest efficiency solar panels (22–24%). Maxeon cells manufactured in the Philippines with Wacker (Germany) and Hemlock (US) polysilicon. Aleris aluminium frame. Price: 50–70% more expensive than equivalent Chinese panels.
REC Group — Norway (9.81). Solar panels with Norwegian REC Silicon polysilicon, cells manufactured in Singapore (6.27 — just above the threshold). The most democratic chain available on the European market. Price: 30–40% more expensive than equivalent Chinese panels.
Panasonic HIT — Japan (8.40). The highest efficiency heterojunction cells after SunPower. Japanese polysilicon, Japanese manufacturing. Price: similar to REC Group.
The irresolvable paradox
There is an irresolvable paradox in solar energy from the democratic perspective: installing Chinese solar panels accelerates the necessary energy transition to combat climate change (which affects all countries, democratic or not), but finances the manufacturing industry of an authoritarian regime with documented forced labour practices.
Democratic solar panels (SunPower, REC) cost 30–50% more. For an average 5kW residential installation, the difference can be €3,000–5,000.
Democratic Market reports this paradox without resolving it. Our criterion is clear: we list only panels with verified democratic-origin polysilicon and manufacturing in countries with an EIU score above 6.0. But we acknowledge that the energy transition has its own democratic complexity.
This article was originally published at Democratic Market. Read the full version with additional analysis on our site.
