Solar ESSCompare the two displayed Techfine all-in-one ESS pages
Open the 5.5 or 11 kW page, then request the exact battery/energy, PV and AC ratings, BOM, operating modes, safety/transport files, installation, warranty and supply terms.
Displayed system routes
Compare the two systems by configuration, not kW alone
The pages share broad features but represent different power classes. Exact battery, PV and AC configurations require source tables and quotation confirmation.
5.5 kW all-in-one route
Confirm continuous/peak AC output, phase/voltage, PV MPPT voltage/current/power, included battery voltage/Ah/kWh, usable SOC window, ports, protection, dimensions and expansion options.
11 kW all-in-one route
Confirm the same model-level fields plus service/grid/generator input, backed-load wiring, higher-current cable/protection, thermal design, battery quantity and permitted operating modes.
Priority and grid-feed modes
PV, mains and battery priority wording requires exact firmware/settings, meter/CT, grid code, export limit, transfer and fail-safe behavior. It does not grant permission to feed every destination grid.
Battery expansion
Expandable capacity depends on supported module model, maximum quantity, BMS hierarchy, cables/combiner, firmware, matching SOC/age, enclosure and protection. Request the approved configuration matrix.
All-in-one ESS RFQ checks
Six checks before selecting a Techfine home storage system
A useful proposal begins with load and operating data, then defines every included component and responsibility.
Use case and loads
State self-consumption, backup, off-grid or tariff use; provide continuous/peak loads, motors, critical circuits, daily kWh, outage duration, reserve and required transfer behavior.
PV and AC/grid design
Provide module/string data and site temperatures plus phase/voltage/frequency, service/generator, grounding, grid/export rules and destination authority requirements.
Battery power and energy
Confirm included chemistry, model, voltage/Ah, gross/usable kWh, continuous/peak current, BMS, SOC window, cycles/day, temperature, autonomy and permitted expansion.
Included system BOM
Itemize inverter/charger, battery/BMS, MPPT, meter/CT, communications, enclosure, cables, breakers/fuses/SPD, transfer/bypass, display, mounting and optional accessories.
Safety, installation and commissioning
Confirm enclosure/IP, cooling, clearances, isolation, electrical/fire rules, emergency shutdown, battery transport, site wiring, settings, functional tests, training and responsible installer.
Performance, files and supply
Request exact datasheet/manual, cycle and efficiency test basis, pairing and certificate scope, UN38.3/SDS, warranty, MOQ/sample, production status, lead time, substitutions and acceptance tests.
System and performance boundaries
All-in-one does not mean turnkey, universal grid approval or guaranteed runtime
Final performance depends on exact battery, PV, loads, settings, included hardware, site design and destination rules.
Power rating is not stored energy
5.5 or 11 kW describes a power class, not battery kWh or runtime. Confirm included and usable energy, load profile, surge, SOC reserve, temperature and losses.
10,000-cycle wording needs a test boundary
The source says up to 10,000 cycles at 25°C; this does not establish system warranty or field life without rate, DOD/SOC, end-of-life criterion, battery model and written terms.
Grid-feed wording is not destination permission
Exact model, firmware, meter/CT, protection, grid listing/code and utility approval determine whether export is allowed. Confirm the current regional package.
Integrated enclosure still leaves site scope
Distribution, grounding, external protection, civil/mounting, permits, fire compliance, installation and commissioning remain outside unless explicitly itemized in the quotation.
Continue the ESS review
Connect the system shortlist to storage sizing and backup scope
Use the sizing guide for load/energy assumptions and the backup solution for component and installation responsibilities.
Battery storage sizing guide
Organize loads, daily energy, backup duration, PV, cycling, SOC reserve and degradation before comparing kW and usable kWh.
Review sizing inputs
Residential solar backup solution
Review how PV, inverter, battery, critical-load distribution, protection and local installation form one backup system.
Review backup context
Techfine all-in-one ESS FAQ
Questions to close before selecting a home storage system
These answers support procurement; final sizing, grid acceptance, runtime, safety and installation remain model- and site-specific.
Does 5.5 kW or 11 kW tell me the battery capacity?
No. It describes a power class. Confirm the included battery model, voltage/Ah, gross and usable kWh, SOC window, current, expansion quantity and actual load/autonomy calculation.
Does up to 10,000 cycles at 25°C mean a 10,000-cycle warranty?
No. Request the exact battery model, charge/discharge rate, DOD/SOC window, end-of-life criterion and written warranty. Field temperature, loads, settings and aging affect life.
Can the system feed power to any utility grid?
Do not assume so. Confirm exact model and firmware, grid code/listing, phase/voltage, meter/CT and export-control design, protection and utility/authority approval for the destination.
What should a Techfine Solar ESS RFQ include?
Include destination, exact 5.5/11 kW route, loads and backup duration, PV strings, AC/grid/generator, required usable kWh and expansion, complete BOM, safety/transport files, installation, quantity, sample and schedule.
Techfine all-in-one ESS procurement
Techfine 5.5 kW and 11 kW All-in-One Solar Energy Storage Systems
Compare two displayed source pages for 5.5 kW and 11 kW all-in-one solar storage systems. Both mention sine-wave output, LFP battery packs, selectable PV/mains/battery priority, grid-feed wording and expandable battery capacity, but the category text does not establish exact usable kWh, complete BOM, grid approval or delivered runtime. Preserve the exact system page, then confirm inverter/charger, battery and BMS, PV inputs, AC/grid and backed-load output, included protection and controls, expansion rules, thermal/fire and transport scope, documents, installation/commissioning, current MOQ/sample status, warranty and terms.
Prepare a Techfine all-in-one Solar ESS RFQ
Send the loads and backup target, PV and AC/grid data, required usable energy, exact system/BOM, expansion, safety files, quantity and delivery plan.