Chinese energy storage manufacturer and BNEF Tier 1 supplier offering C&I and utility-scale BESS. Full-stack self-developed systems including BMS, EMS, and cloud platform.
CATL-ATL joint venture specializing in residential, C&I, and data center energy storage. Uses proprietary Kunlun LFP cells with 15,000-cycle lifespan and pioneered mass-produced semi-solid-state LFP cells with 32 GWh annual production capacity.
#2 global battery manufacturer with vertically integrated BESS from Blade LFP cells to DC and AC block systems. Haohan is the flagship utility-scale DC block up to 14.6 MWh; Chess Plus covers C&I applications.
Chinese Tier 1 LFP cell manufacturer listed on the Hong Kong Stock Exchange. Produces high-capacity LFP cells and containerized BESS for utility-scale energy storage with 100 GWh annual capacity.
World's largest BESS battery manufacturer by shipped capacity. Vertically integrated from LFP cell production to containerized DC block systems. Flagship TENER platform claims zero degradation over first five years.
Chinese state-owned rolling stock and energy group, ranked #3 globally in BESS integration by market share. Offers liquid-cooled containerized energy storage systems.
Canadian-Chinese solar and energy storage company with dedicated e-STORAGE subsidiary. Manufactures own LFP cells and utility-scale SolBank DC block systems.
Subsidiary of Hengxin Auto Group, ranked top 7 globally in ESS battery shipments. LFP cells (100–588Ah) and DC blocks up to 6.26 MWh. Datasheets available.
Tier 1 battery manufacturer operating the world's largest dedicated BESS factory (60 GWh in Jingmen). Produces LFP cells (628Ah 'Mr. Big') and containerized DC block systems with CTP technology. Also developing sodium-ion BESS.
Top 4 global BESS integrator (Wood Mackenzie) and BloombergNEF Tier 1 manufacturer with 30+ GWh deployed across 300+ projects. Gen 8 Scalable Platform features proprietary 750Ah+ LFP cells in modular 10-foot units supporting 6-12+ MWh configurations with 440+ Wh/L energy density.
Sino-British clean energy company ranked 2nd globally for residential energy storage shipments and BloombergNEF Tier 1. Offers hybrid inverters, high-voltage LFP battery systems, and C&I all-in-one storage solutions across 70+ countries.
Chinese lithium mining and battery group with vertically integrated BESS division. Over 21 GWh deployed globally, offering LFP cells and containerized energy storage systems up to 10 MWh.
Chinese battery manufacturer listed on the Shenzhen Stock Exchange (300438) with 8 production bases and capacity exceeding 100 GWh. Produces LFP cells and utility-scale BESS systems.
Chinese energy storage manufacturer and BNEF Tier 1 supplier, ranked among China's top 3 C&I storage providers. Full-stack self-developed systems with 3S integration.
Energy storage division of JinkoSolar and BNEF Tier 1 manufacturer, offering utility-scale and C&I battery energy storage systems built on in-house LFP cell technology. SunTera containers deliver up to 6.25 MWh per 20ft unit with 10,000+ cycle life.
Chinese smart grid and energy storage company listed on the Shanghai Stock Exchange. Offers liquid-cooled battery containers, energy storage cabinets, and integrated EMS platforms.
Swiss-headquartered energy storage company manufacturing LFP-based BESS solutions in Turkey. Product range spans utility-scale DC containers and MV skids to commercial AC cabinets.
Vertically integrated energy storage company manufacturing LFP cells (280Ah to 783Ah solid-state) and containerized BESS up to 8.3 MWh per unit. Over 8 GWh installed globally across 40+ countries with 260+ safety certifications and pioneering solid-state battery technology.
US-based BESS company (Mitsubishi Power and EES joint venture) offering integrated energy storage platforms. Over 6 GWh deployed across 35+ utility-scale projects.
Leading modular LFP battery system manufacturer for C&I and utility-scale BESS. Container-based L-series and PowerCube rack systems are deployed across European and APAC markets.
Chinese energy storage company specializing in modular BESS solutions from 50 kWh to 5+ MWh with intelligent microgrid control systems. Core technology centers on smart microgrid controllers with millisecond-level response, integrated EMS, and cloud-based virtual power plant capabilities.
BloombergNEF Tier 1 energy storage manufacturer that expanded from solar into comprehensive BESS solutions through subsidiary SYL Battery. Offers vertically integrated products spanning LFP cells, modules, PCS, and containerized systems with 15 GWh+ annual production capacity.
French battery manufacturer and TotalEnergies subsidiary specializing in high-reliability BESS for industrial and grid applications. Intensium Max+ is their flagship utility-scale BESS container.
Fast-growing energy storage company founded by former Huawei Smart PV executives, specializing in AI-optimized residential and C&I BESS. SigenStor 5-in-one system integrates solar inverter, EV DC charger, battery PCS, battery pack, and EMS in a single unit.
Chinese publicly listed smart energy company specializing in PV inverters and energy storage systems. Manufactures utility-scale PCS and battery containers (ORI series) as well as commercial and industrial integrated storage solutions.
BloombergNEF Tier 1 energy storage manufacturer with vertically integrated LFP cell production (102Ah to 684Ah) and containerized BESS systems. NoahX 3.0 delivers 6.528 MWh per 20ft container with 15,000+ cycle life and AI-based active balancing.
Chinese cable and energy group offering utility-scale liquid-cooled BESS containers with self-developed integrated PCS. Active in energy storage since 2012.
Chinese BESS manufacturer specializing in PCS, battery packs, BMS, and complete energy storage systems. Top 10 Chinese utility-scale BESS OEM supplier with 100+ large-scale projects installed globally.
En DC-blok er en selvstændig enhed, der samler batterimoduler, racks, et BMS og integreret termisk styring i en driftsklar jævnstrømsenhed. I utility-scale BESS forbindes flere DC-blokke til en centraliseret eller streng-baseret PCS (effektkonverteringssystem), som konverterer jævnstrøm til netkompatibel vekselstrøm. DC-blokken er det niveau, hvor indkøbsteams vurderer energikapacitet, systemintegrationskompleksitet og langsigtet nedbrydningsadfærd — og den udgør den største enkeltstående post i et BESS' anlægsomkostninger.
De fleste utility-scale DC-blokke anvender LFP-kemi i container- eller skabsformat med 4–9+ MWh kapacitet. Væskekøling er nu standarden for projekter med flere megawatttimer — den muliggør mere ensartede celletemperaturer og højere effekttætheder end luftkøling.
Nøglespecifikationer
Hvad man bør sammenligne ved evaluering af DC-blokke
Ved udvælgelse af til et BESS-projekt er disse de vigtigste tekniske specifikationer, som EPC-virksomheder, projektudviklere og systemintegratorer typisk evaluerer:
C-rate
0,25C – 1C
C-raten bestemmer den maksimale lade-/afladeffekt i forhold til kapaciteten. Højere C-rater (≥ 0,5C) muliggør indtægtsstabling; lavere rater (0,25C) optimerer langsommere cykling og mindre nedbrydning.
Energikapacitet
4 – 9+ MWh
Energikapaciteten pr. DC-blok påvirker direkte anlægsareal, kablingskompleksitet og omkostninger. Større blokke reducerer antallet af enheder og nødvendige BoP-tilslutninger.
Kemi
LFP dominerende
LFP er standardkemien til utility-scale DC-blokke på grund af sikkerhed og cykluslevetid. Nogle producenter tilbyder NMC-varianter til applikationer, hvor energitæthed er afgørende.
Tur-retur-virkningsgrad
85 – 95 %
Målt på DC-blokniveau (AC tur-retur-virkningsgrad inkluderer desuden PCS- og transformatortab). Højere virkningsgrad forbedrer LCOS og arbitrageafkast.
Kølemetode
Væske eller luft
Væskekøling muliggør højere effekttætheder og mere ensartede celletemperaturer. Luftkøling er enklere, men erstattes af væskekøling i utility-scale.
Certificeringer
UL 9540A, IEC 62619
UL 9540A evaluerer brandudbredelsesadfærd på systemniveau. IEC 62619 dækker battericellernes sikkerhed. Regionale krav kan kræve yderligere standarder.
Ofte stillede spørgsmål
Ofte stillede spørgsmål
Hvad er forskellen mellem en DC-blok og en AC-blok?
En DC-blok leverer jævnstrøm og skal tilsluttes en ekstern PCS, der konverterer strømmen til netkompatibel vekselstrøm. En AC-blok integrerer PCS og batteri i én enhed og leverer vekselstrøm direkte. DC-blokke giver mere arkitektonisk fleksibilitet og foretrækkes til de fleste utility-scale-projekter, mens AC-blokke forenkler integrationen og er mere udbredte i mindre C&I-applikationer.
Hvorfor bruger de fleste utility-scale BESS-projekter DC-blokke?
DC-blokke giver projektudviklere og EPC-virksomheder mulighed for at vælge PCS-leverandør og batteriproducent uafhængigt af hinanden og optimere systemarkitekturen (centraliseret vs. streng) efter hvert projekts krav. Denne modularitet forbedrer forhandlingspositionen ved indkøb, forenkler udskiftning under garanti og muliggør billigere kapacitetsudvidelse over projektets levetid.
Hvilke certificeringer skal en DC-blok have?
De to hyppigst krævede certificeringer er UL 9540A (testmetode for brandudbredelse på systemniveau) og IEC 62619 (sikkerhedskrav til industrielle litiumionbatterier). Afhængigt af region og projektejer kan yderligere standarder kræves, såsom UN 38.3 (transport), IEC 62477 (sikkerhed for effektelektronik), IP-beskyttelsesgrader og projektspecifikke brandkrav.
Hvordan påvirker DC-blokkens kapacitet projektomkostningerne?
Større DC-blokke (f.eks. 5+ MWh pr. enhed) reducerer det samlede antal enheder for et projekt, hvilket mindsker kabling, BoP og installationsindsats. Dog kræver større enheder tungere løfteudstyr til transport og placering. Indkøbsteams bør afveje DC-blokkens størrelse mod anlægslogistik, fundamentkrav og kapacitetsudvidelsesstrategi.
