ARTsolar vs Wattpower - solar panel manufacturer comparison
Both brands are closely matched on catalog size, efficiency and bifacial share - the choice comes down to local availability, price and specific model features.
Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.
The two companies
WattPower Technology Co., Ltd is a Chinese solar module manufacturer headquartered in Nanjing, Jiangsu. The company specializes in high-performance photovoltaic modules utilizing 182mm large-size silicon wafers combined with PERC, multi-busbar, half-cell, bifacial, and high-density encapsulation technologies. It...
- Founded
- 2020
- Headquarters
- Nanjing, China
- Annual capacity
- 1-2 GW/year
- Employees
- 11-50
Catalogue against catalogue
An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.
What each of them builds
Written summary
ARTsolar is a South African PV module manufacturer founded in 2010 and headquartered in Durban, where the "ART" in its name stands for African Renewable Technologies. The company is 100% locally owned and holds a production facility with a designed capacity of roughly 300-340 MW per year, expandable to 500 MW given sufficient order volume. Through successive technology partnerships, first with LONGi Solar and most recently with JA Solar, it now assembles large-format, high-efficiency TOPCon modules whose quality credentials are anchored to JA Solar's established Tier 1 and BloombergNEF bankability standing. WattPower Technology Co., Ltd is a Chinese manufacturer with a considerably less visible public profile; the company lists offices in China, Germany, and the United States and offers a module catalogue spanning PERC, bifacial, HJT, and TOPCon formats across roughly 385 to 700 Wp, but no independent Tier 1 or BloombergNEF bankability confirmation for WattPower Technology itself was found in publicly available sources. ARTsolar therefore carries the stronger institutional footprint, particularly within African project-finance frameworks.
ARTsolar's current focus centres on large-format TOPCon modules assembled under JA Solar's technology licence, positioning the brand for both commercial rooftop and utility-scale ground-mount projects inside South Africa's Independent Power Producer programme. TUV SÜD certification and IDC loan-backed production infrastructure reinforce its use in bankable tender submissions. WattPower Technology appears to target a broader international commercial and industrial segment with its wider technology range, but limited independent review coverage and the absence of confirmed Tier 1 status make it harder to assess without hands-on due diligence.
For buyers active in South Africa or neighbouring markets in 2025, ARTsolar is generally the more practical choice: its modules carry Tier 1-grade quality credentials via the JA Solar partnership, lead times benefit from local assembly, and the brand has a documented track record in large project deployments. WattPower Technology may appeal to buyers seeking competitively priced Chinese-made modules with varied technology options, but bankability verification and scrutiny of warranty enforcement capability are strongly advisable before committing to a large installation.
- JA Solar and ARTsolar agree to expand PV module manufacturing in South Africa
- LONGi Solar partners with South African PV panel maker ARTsolar
- ARTsolar and JA Solar - driving South Africa's renewable energy revolution
- WattPower Technology Co., Ltd - Solar Panels - China
- ARTsolar (Pty) Ltd - Solar Panels - South Africa
Generated by Claude Sonnet · 2026-06-08
Other brand comparisons
Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.