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.
#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 state-owned rolling stock and energy group, ranked #3 globally in BESS integration by market share. Offers liquid-cooled containerized energy storage systems.
Product-focused BESS manufacturer specializing in integrated AC block solutions for C&I and utility-scale markets. FlexCombo delivers integrated BMS, PCS, and fire protection in a standardized cabinet with grid-forming capability.
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.
Independent BESS integrator (Siemens + AES JV, now public). Gridstack platform offers modular AC block systems with AI-optimized dispatch through the Fluence IQ software layer.
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.
GE's energy transition spinout offering Reservoir BESS and PowerStore grid-forming battery systems. Targets large utility and grid stability applications with advanced inverter-based resources.
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.
South Korean heavy industries conglomerate and BESS system integrator offering PCS and complete energy storage systems. Over 3 GWh delivered since 2009.
Chinese C&I energy storage specialist and BNEF Tier 1 manufacturer. China's #1 user-side energy storage integrator with over 1,000 projects and 20,000 eBlock units deployed.
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.
Finnish power electronics company designing and manufacturing grid-forming BESS and STATCOM solutions. Arctic-grade systems operating down to -40 °C with 95-98% efficiency.
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.
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.
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.
Global energy management company offering a containerized AC-coupled BESS for commercial and industrial microgrids in the North American market, integrated with EcoStruxure controls.
Global energy technology company providing SINACON BESS systems from PCS to full AC block and SCADA. Targets utility-scale grid stability applications with turnkey solutions.
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.
World's largest utility-scale BESS supplier by installed capacity. Megapack 2 XL delivers up to 3.9 MWh per unit using Tesla LFP cells, with integrated BMS, PCS, and thermal management.
Volvo Group's energy storage division offering modular BESS for C&I applications, EV charging infrastructure, and grid support. Second-life battery capable.
Finnish power technology company offering GridSolv Quantum BESS and GEMS energy management software. Specializes in hybrid power plants combining BESS with thermal and renewable generation.
Shanghai-based energy storage company and BNEF Tier 1 manufacturer with 14 GWh manufacturing capacity. Offers modular BESS solutions for C&I and utility-scale applications.
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.
AC blok je potpuno integrirani proizvod za pohranu energije iz baterija koji objedinjuje baterijske module, BMS, upravljanje toplinom i PCS (sustav za pretvorbu snage) u jednu jedinicu. Za razliku od DC blokova, koji zahtijevaju vanjski pretvarač, AC blok izravno isporučuje izmjeničnu struju kompatibilnu s mrežom. Za timove za nabavu, ova sveobuhvatna arhitektura pojednostavljuje integraciju sustava, smanjuje broj odnosa s dobavljačima i snižava složenost BoP-a.
AC blokovi najčešće se koriste u C&I primjenama i manjim utility-scale projektima, gdje su jednostavnost i brzo puštanje u rad prioriteti. Za velike projekte, zasebna nabava DC blokova i PCS-a nudi veću arhitektonsku fleksibilnost i bolje pregovaračke pozicije.
Ključne specifikacije
Što usporediti pri evaluaciji AC blokova
Prilikom uže selekcije za BESS projekt, ovo su ključne tehničke specifikacije koje EPC tvrtke, razvijači projekata i integratori sustava obično evaluiraju:
C-rate
0,25C – 1C
Određuje maksimalnu snagu punjenja/pražnjenja u odnosu na kapacitet. Većina AC blokova projektirana je za 0,5C, čime se uravnotežuju performanse i životni vijek.
Energetski kapacitet
215 kWh – 10 MWh
AC blokovi pokrivaju širok raspon — od C&I jedinica (215 kWh) do utility-scale kontejnera (10 MWh). Optimalna veličina ovisi o primjeni i arhitekturi sustava.
Kemija
LFP dominira
LFP je standardna kemija za AC blokove zbog sigurnosnog profila i cikličkog životnog vijeka. Neki C&I proizvodi koriste NMC kada se zahtijeva veća energetska gustoća.
Ukupna učinkovitost ciklusa
85 – 92 %
Učinkovitost mjerena na AC strani, uključujući gubitke PCS-a. Tipično nešto niža od sustava s odvojenim DC blokom i PCS-om, jer integrirani PCS ne radi uvijek u optimalnoj radnoj točki.
Metoda hlađenja
Tekuće ili zračno
Veći utility-scale AC blokovi sve više koriste tekuće hlađenje. Manje C&I jedinice obično koriste zračno hlađenje.
Certifikati
UL 9540A, IEC 62619
Isti osnovni certifikati kao za DC blokove. Budući da ima integrirani PCS, AC blok mora dodatno zadovoljiti zahtjeve za priključak na mrežu (npr. mrežna pravila HOPS-a) na razini sustava.
Često postavljana pitanja
Često postavljana pitanja
Koja je razlika između AC bloka i DC bloka?
AC blok integrira bateriju i PCS u jednu jedinicu i izravno isporučuje izmjeničnu struju. DC blok sadrži samo bateriju, BMS i upravljanje toplinom — zahtijeva zaseban vanjski PCS za priključak na mrežu. AC blokovi pojednostavljuju integraciju; DC blokovi nude veću arhitektonsku fleksibilnost.
Kada odabrati AC blok umjesto DC bloka?
AC blokovi posebno su prikladni za C&I primjene, manje utility-scale projekte i situacije u kojima su brzo puštanje u rad, manja složenost dobavljačkih odnosa i minimalni BoP važniji od potpune arhitektonske fleksibilnosti. Za velike utility-scale projekte (50+ MWh), većina razvijača projekata preferira DC blokove sa zasebnim PCS-om kako bi neovisno optimizirali nabavu i dizajn sustava.
Koje certifikate mora imati AC blok?
AC blokovi zahtijevaju iste osnovne certifikate kao DC blokovi (UL 9540A, IEC 62619) plus dodatne akreditacije za integrirani PCS, uključujući sukladnost s mrežnim pravilima (mrežna pravila HOPS-a) i sigurnost energetske elektronike (IEC 62477). Budući da je AC blok potpuno integrirana jedinica, ispitivanja sustava moraju obuhvatiti interakciju svih komponenti.
Koji je tipičan raspon kapaciteta AC blokova?
AC blokovi kreću se od približno 215 kWh (kompaktne C&I jedinice) do više od 10 MWh (utility-scale proizvodi u kontejneru). Većina C&I AC blokova smještena je između 200 kWh i 1 MWh, dok utility-scale varijante tipično nude 3–10 MWh po jedinici. Izbor ovisi o veličini projekta, ograničenjima lokacije i željenoj arhitekturi sustava.
