Kehua vs Sineng Electric: BESS PCS Manufacturer Deep-Dive

Quick summary

• Kehua — 36-year power-electronics company with three business lines (Data Center, Clean Energy, Critical Power). 7.76 B RMB revenue, 4.06 % net margin, 6.96 % ROE. Overseas revenue: 9.35 % of total (–25.8 % YoY).
• Sineng Electric — 20-year renewable energy power-electronics company with two business lines (PV Inverters, Energy Storage). 4.77 B RMB revenue, 8.77 % net margin, 21.45 % ROE. Overseas revenue: 24.38 % of total (+68.7 % YoY).
• Both are SZSE-listed and rank among the top Chinese ESS PCS producers.

01. Why compare Kehua and Sineng

Kehua and Sineng are both Chinese, both listed on the Shenzhen Stock Exchange, both publish PCS datasheets covering the 1,250 kW–8,000 kW range at 1,500 V DC, and both sell into European BESS projects. Both appear in Chinese ESS PCS shipment rankings.

Their corporate structures differ. Kehua was founded in 1988 and reports three business lines, of which BESS sits within one. Sineng was founded in 2004 and reports two main business lines, with energy storage at 40 % of 2024 revenue.

This comparison pulls directly from both companies’ 2024 annual reports (filed with the Shenzhen Stock Exchange), 2024 ESG reports, and the PCS/DC-block datasheets on both manufacturer sites. No marketing materials, no analyst summaries.

02. At-a-glance company snapshot

View full Kehua profile → · View full Sineng Electric profile →

03. Corporate DNA: UPS heritage vs. solar-inverter origins

Kehua was born in 1988 as a UPS manufacturer. For its first two decades, mission-critical power was the identity — uninterruptible power supplies for banks, data centers, telecom, rail transit, hospitals, and industrial sites where a millisecond of power interruption was unacceptable. The 2010 Shenzhen IPO came off that base.

The Kehua of 2024 has layered two more businesses on top of that UPS foundation: a data-center services business (now the fastest-growing segment at +14 %) and a clean-energy business that includes PV inverters, the BCS-series central PCS, and the recently-launched S³-EStation 2.0 liquid-cooled storage system. All three business lines share a common power-electronics engineering DNA — the same plants, the same IGBT supply chains, the same test labs.

Sineng Electric was founded in 2004 as a solar inverter company. The name “Sineng” (上能) translates roughly to “upper energy” — the company’s entire identity has been around converting electrical energy from one form to another for the renewable energy industry. PV inverters came first, followed by PCS for BESS.

In 2024 Sineng reported PV inverters at 58 % of revenue and ESS PCS + system integration at 40 %. A power-quality business (SVG, APF, DVR) accounted for the remaining 1 %. Sineng reports no data-center or UPS business.

04. 2024 financial scorecard

Both companies are profitable and listed on SZSE.

Both companies spend approximately 6 % of revenue on R&D. Kehua’s absolute R&D spend (505 M RMB) is 1.7x Sineng’s (290 M RMB) (derived).

05. Product lineup: where each plays

Kehua’s BESS product portfolio

• Central PCS (1,500 V DC): BCS series — 100 kW, 500 kW, 1,000 kW, 1,250 kW, 1,725 kW, 2,000 kW, 2,500 kW, 3,450 kW, 4,000 kW, 5,000 kW, 6,900 kW, 10,000 kW variants. Both global (-C-HUD) and North America UL-certified (-NP) SKUs available.
• PCS + MV skid integrated products: Multiple “T-series” SKUs from 3,450 kW up.
• DC block / integrated storage: S³-EStation 2.0 (3.44 MWh and 5 MWh variants), launched 2024 with a full-liquid-cooling grid-forming architecture that Kehua describes as an industry first.
• PV inverters: String 3 kW–10 MW, central with first 320 kW 1,500 V Chinese string inverter in 2024.
• Off-grid and hybrid inverters for microgrid and distributed applications.
• UPS (for comparison context, not ESS): 0.5 kVA–1.2 MVA.

Sineng’s BESS product portfolio

• Central PCS (1,500 V DC): EH-series — 1,250 kW, 1,375 kW, 1,575 kW, 1,600 kW, 1,725 kW, 2,000 kW (-HA-UD), plus the EH-1250-HB-UD. One variant has a 0.84 m² footprint.
• String PCS: EH-0125 through EH-0430 modular PCS (125–430 kW) for distributed / microgrid / weak-grid applications.
• PCS + MV skid integrated products: EH-3.2-5000, EH-3450, EH-4000, EH-5000, EH-6250, EH-6900, EH-8000 variants — 3.2 MW to 8 MW integrated solutions at 10–35 kV grid voltage.
• DC converter: ES-0182-HA-M.
• ESS EMS: Proprietary Sienergy platform (grid-side, utility) + EMS V1.0 + RT-3701 hardware.
• ESS system integration products: EB-5000KWH and EB-3200KWH-1600M containerized battery systems.
• PV inverters: String 3–350 kW (SN-series), central 2,500–8,800 kW (SP/EP-series), up to 99 % efficiency claims.
• Power Quality (small business): APF (30–150 A), SVG (30–600 kVar), DVR (200–3,000 kVA).

See all PCS manufacturers → · See all DC Block manufacturers →

06. Geographic footprint and overseas strategy

Overseas revenue, export markets and subsidiary structure for 2024:

Sineng’s overseas revenue grew +68.7 % YoY to 1,164 M RMB (24.4 % of total). The company has incorporated 10 dedicated subsidiaries in target markets including Germany, Spain, Greece, India, Brazil, UAE, USA, Singapore, South Africa, and Hong Kong.

Kehua’s overseas revenue declined –25.8 % YoY to 725 M RMB (9.35 % of total). The company states coverage across 30+ countries. Overseas subsidiary structures are not itemized in the 2024 annual report.

07. Manufacturing scale and installed base

Both companies publish cumulative shipment figures, though with slightly different methodologies.

Kehua (as of end-2024):

• Cumulative PV inverter shipments: 56 GW globally
• Cumulative ESS deployments: 30 GW / 12 GWh worldwide (both power and energy metrics reported)
• Global ESS PCS shipment rank: #1 among Chinese companies (stated in annual report, self-reported)
• 10 consecutive years on the “Global New Energy Top 500” list
• Rail transit protection: 668+ km across 29 metro lines, 200+ high-speed rail lines, 300+ expressway segments
• UPS market share rankings (cited from third parties):
  • Frost & Sullivan — 2023 Global UPS Competitive Strategy Innovation & Leadership Award
  • Omdia 2024 — Global Modular UPS market share: #4. Asia-Pacific Industrial UPS: #1
  • Forward — China high-end UPS market share: #1

Sineng (as of end-2024):

• S&P Global 2023 — Global PV inverter shipment rank: #4 (sustained in top 10 for multiple years)
• CNESA — Top-2 China ESS PCS shipments for four consecutive years (2021–2024)
• 2024 PV inverter sales volume: 25,109 MW (+6.99 % YoY from 23,469 MW)
• Cumulative ESS shipments: specific GW/GWh number not cited in the 2024 filings — company positions itself as a top-tier Chinese ESS PCS producer

08. Innovation, R&D, and intellectual property

Kehua reports 2,310 IP assets against Sineng’s 243 — 9.5x by count (derived). Kehua’s total covers UPS, data-center and clean energy domains, and the company participates in national standards across data center and storage domains. Kehua holds 12 overseas invention patents and 27 overseas trademarks.

Sineng’s 243-patent portfolio covers PV inverter and PCS topologies, grid-forming algorithms, and integrated PV+storage system integration. Sineng has participated in drafting the Chinese ESS PCS national standard (NB/T 31016-2019) and related grid-integration standards.

09. ESG and governance maturity

Both companies publish standalone 2024 ESG reports, following SZSE listing requirements for mid-cap sustainability disclosure.

Kehua ESG report highlights:

• 51-page report, published 2025
• ESG framework: “Strive for Greener Future with Smart Energy”
• Integrated report includes economic, governance, environmental, and social sections
• Enterprise Spirit: “Strive with Unity, Win through Collaboration”
• Certifications listed: National Manufacturing Single Champion (Green), MIIT Fourth Batch of Smart Photovoltaic Pilot Demonstration Enterprise, 2024 Top Ten Dual-Carbon Technological Innovation Case Studies
• Dongying Jinhui National Energy Storage Demonstration Project cited as sustainable-upgrade benchmark
• 17 Party branches, 1,200 Party members (Chinese political-governance structure, typical for SOEs and private listed companies)

Sineng ESG report:

• Published alongside annual report
• National Smart PV Pilot Demonstration Enterprise designation (same MIIT program as Kehua)
• Jiangsu Manufacturing Leader Enterprise designation
• National Green Supply Chain Management Enterprise

10. Notable customers and track record

Kehua notable domestic customers (per 2024 annual report):

• Utility: State Grid, State Energy Group, China Datang, Huaneng, Huadian, CNNC, China General Nuclear (CGN), Three Gorges Group, State Power Investment, Zhongdianjian, CATL (Ningde Shidai)
• Transportation: Beijing Metro, Shanghai Metro, Tianjin Metro, Zhengzhou Metro, Xi’an Metro (29 line-lengths, 668+ km), 200+ high-speed rail lines, 300+ expressway segments, Shenzhen / Xiamen / Guangzhou airports
• Finance: ICBC, ABC, BOC, China Post Bank, China Minsheng, China CITIC, CTFL Finance
• Industrial: Sinopec, Huajin, Sinopec Zhongsha, Chongqing Petrochemical
• Internet/telecom: China Mobile (including 14th 5-year plan Tongao Xin Cloud DC), China Unicom

Kehua overseas BESS deliveries: Mingzhu 350 kW string inverter shipped to Italy, Vietnam, Poland, Brazil. PV and ESS products sold to US, Germany, Poland, India, Saudi Arabia, Spain, Vietnam, Brazil across 30+ countries. Specific overseas BESS project names not disclosed in 2024 filings.

Sineng notable domestic customers (per 2024 annual report):

• Utility: State Grid (国家电投), National Energy Group (国家能源集团), China Datang (大唐), CNNC (中核), China General Nuclear (中广核), PowerChina (中国电建), China Energy Engineering (中国能建)
• Telecom/Internet infra: China Telecom (Southern Smart Computing Center), China Unicom (Xinhua Big Data Innovation Park), Tencent (Yangtze Delta AI Supercomputing)
• Industrial: 河北同光半导体 (Hebei Tongguang Semiconductor), 云南曲靖基地 (Yunnan Qujing 10 GW TOPCon)

Sineng notable overseas customers:

• India: TATA, Adani, AVAADA, L&T
• Middle East: ACWA Power (Saudi Arabia’s sovereign renewables-focused utility)
• Project coverage: India, Saudi Arabia, UAE, USA, Brazil, Spain, Germany, Greece, South Africa, Algeria, South Korea, Philippines

Sineng project: Hubei 100MW/200MWh sodium-ion ESS project named 2024 Gaogong Gold Globe Award benchmark project.

11. Sources and methodology

This comparison is built from primary-source documents only:

Kehua sources:

• Kehua Data Co., Ltd. 2024 Annual Report (科华数据股份有限公司 2024 年年度报告), published April 2025, 233 pages
• Kehua Tech 2024 Environmental, Social and Governance (ESG) Report, 51 pages
• BCS-series PCS datasheets from digitalenergy.kehua.com
• Company-published market-share citations from Frost & Sullivan, Omdia 2024, CCID (China Center for Information Industry Development), Forward Industrial Research

Sineng sources:

• Sineng Electric Co., Ltd. 2024 Annual Report (上能电气股份有限公司 2024 年年度报告), published April 2025, 250 pages
• Sineng 2024 ESG Report
• EH-series and SP/EP-series datasheets from en.si-neng.com
• Company-published market-share citations from S&P Global (2023) and CNESA (Chinese Energy Storage Alliance) 2021–2024

All currency conversions at approximately 7.2 RMB per 1 USD (2024 average). Revenue and financial data reflect fiscal year 2024 (January–December).

This is a reference page — we update specifications, financials, and market positioning annually when new annual reports are filed. Both companies’ next major disclosure cycle is expected April 2026.