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.
DC plokk on iseseisev üksus, mis koondab akumoodulid, riiulid, BMS-i ja integreeritud soojusjuhtimise üheks alalisvooluks valmis lahenduseks. Utility-scale BESS-projektides ühendatakse mitu DC plokki tsentraliseeritud või string-tüüpi PCS-iga (võimsusmuundussüsteem), mis muundab alalisvoolu võrguga ühilduvaks vahelduvvooluks. DC plokk on tase, kus hankemeeskonnad hindavad energiamahutavust, süsteemiintegratsiooni keerukust ja pikaajalise degradatsiooni käitumist — ning see moodustab BESS-i CAPEX-ist suurima üksikartikli.
Enamik utility-scale DC plokke kasutab LFP-keemiat konteineri- või kapiformaadis mahutavusega 4–9+ MWh. Vedelikjahutus on nüüdseks standard mitme megavatt-tunni projektidele — see tagab ühtlasema elementide temperatuuri ja suurema võimsustiheduse kui õhkjahutus.
Peamised spetsifikatsioonid
Mida võrrelda DC plokkide hindamisel
Eelvaliku tegemisel BESS-projekti jaoks on need peamised tehnilised spetsifikatsioonid, mida EPC-ettevõtted, arendajad ja süsteemiintegraatorid tavaliselt hindavad:
C-rate
0,25C – 1C
C-rate määrab maksimaalse laadimis-/tühjendamisvõimsuse mahutavuse suhtes. Kõrgemad C-rate'd (≥ 0,5C) võimaldavad tulude kuhjamist; madalamad (0,25C) optimeerivad aeglasemat tsüklitamist ja väiksemat degradatsiooni.
Energiamahutavus
4 – 9+ MWh
Energiamahutavus DC ploki kohta mõjutab otseselt paigalduskoha pindala, kaablelduse keerukust ja kulusid. Suuremad plokid vähendavad vajalike üksuste arvu ja BoP-ühendusi.
Keemia
LFP domineeriv
LFP on standardne keemia utility-scale DC plokkide jaoks tänu ohutusele ja tsükliressursile. Mõned tootjad pakuvad NMC-variante rakendustes, kus energiatihedus on määrav.
Edasi-tagasi kasutegur
85 – 95 %
Mõõdetud DC ploki tasemel (AC edasi-tagasi kasutegur hõlmab lisaks PCS-i ja trafo kadusid). Kõrgem kasutegur parandab LCOS-i ja arbitraaži tasuvust.
Jahutusviis
Vedelik- või õhkjahutus
Vedelikjahutus võimaldab suuremaid võimsustihedusi ja ühtlasemat elementide temperatuuri. Õhkjahutus on lihtsam, kuid utility-scale'is on seda asendamas vedelikjahutus.
Sertifikaadid
UL 9540A, IEC 62619
UL 9540A hindab tulekahju levimise käitumist süsteemi tasemel. IEC 62619 katab akuelementide ohutust. Piirkondlikud nõuded võivad nõuda lisastandardeid.
Korduma kippuvad küsimused
Korduma kippuvad küsimused
Mis vahe on DC plokil ja AC plokil?
DC plokk annab alalisvoolu ja vajab ühendamist välise PCS-iga, mis muundab voolu võrguga ühilduvaks vahelduvvooluks. AC plokk integreerib PCS-i ja aku ühte üksusesse ning annab otse vahelduvvoolu. DC plokid pakuvad suuremat arhitektuurilist paindlikkust ja on eelistatud enamiku utility-scale projektide puhul, samas AC plokid lihtsustavad integreerimist ja on levinumad väiksemate C&I rakenduste puhul.
Miks kasutab enamik utility-scale BESS-projekte DC plokke?
DC plokid võimaldavad arendajatel ja EPC-ettevõtetel valida PCS-tarnija ja akutootja sõltumatult ning optimeerida süsteemiarhitektuur (tsentraliseeritud vs string) vastavalt iga projekti nõuetele. See modulaarsus parandab hankimisel läbirääkimispositsiooni, lihtsustab garantiijuhtumite korral asendamist ja võimaldab soodsamat mahutavuse laiendamist projekti eluea jooksul.
Milliseid sertifikaate peab DC plokil olema?
Kaks kõige sagedamini nõutavat sertifikaati on UL 9540A (tulekahju levimise katsemeetod süsteemi tasemel) ja IEC 62619 (tööstuslike liitiumioonakude ohutusnõuded). Sõltuvalt piirkonnast ja arendajast võidakse nõuda lisastandardeid, nagu UN 38.3 (transport), IEC 62477 (jõuelektroonika seadmete ohutus), IP-kaitseklassid ja projektikohaseid tulekaitsenõudeid.
Kuidas mõjutab DC ploki mahutavus projekti kulusid?
Suuremad DC plokid (nt 5+ MWh üksuse kohta) vähendavad projekti jaoks vajalike üksuste koguarvu, vähendades kaableldust, BoP-d ja paigaldamise mahtu. Samas nõuavad suuremad üksused raskemat tõstetehnikat transpordiks ja paigutamiseks. Hankemeeskonnad peavad tasakaalustama DC ploki suurust paigalduskoha logistika, vundamendinõuete ja mahutavuse laiendamise strateegiaga.
