Off-Grid Solar Package 11.05kWp 11kW

The TommaTech 11.05kWp 11kW Off-Grid Solar Package is the higher-capacity fixed-panel option for remote residential, agricultural and commercial sites with substantial 230 V single-phase energy requirements. The official package combines 26 TommaTech 425 Wp 108TN M10 TOPCon solar panels, one M Plus 11 kW MPPT smart inverter and six 51.2 V 100 Ah modular LFP batteries.

The solar array provides 11.05 kWp of nominal capacity across a published module area of 50.96 m². Its six-battery bank provides 30.72 kWh of nominal storage, with the official source publishing 27.648 kWh as available energy using a 90% depth-of-discharge assumption. Under CW Enerji's illustrative four-sun-hour calculation, the array corresponds to 44.2 kWh/day of nominal solar production before real-world system losses.

This package can be positioned for larger off-grid homes, farm operations, guesthouses, rural accommodation, field facilities and higher-consumption remote businesses. Its greater inverter and battery capacity provides more operating headroom than the 7.2 kW package, but it remains a single-phase system and must not be selected from total watts alone. High-starting-current equipment, pumps, heating, cooling, welding and continuous commercial loads require dedicated engineering.

Key Features

• 26 x 425 Wp TOPCon solar modules
• 11.05 kWp total nominal PV capacity
• 11 kW / 11 kVA rated single-phase inverter output
• 230 V pure-sine-wave AC output
• 48 V battery-system architecture
• 6 x 51.2 V 100 Ah modular LFP batteries
• 30.72 kWh nominal battery storage
• 27.648 kWh published available energy at 90% DOD
• MPPT solar charging with a published 90-450 V DC operating range
• Built-in Wi-Fi and mobile-monitoring support on the M Plus inverter platform
• CAN, RS485 or RS232 BMS communication support on the inverter platform
• Utility or generator input compatibility when correctly designed and configured
• Published 13x2 panel-string arrangement in the official package catalogue, subject to mandatory current-revision validation
• Principal PV, battery-power and battery-communication cables listed in the package contents

Recommended Applications

• Larger off-grid homes and rural residences
• Farm operations and agricultural service facilities
• Guesthouses, eco-lodges and rural accommodation
• Remote offices, depots and operational buildings
• Security, monitoring and communication sites with larger load budgets
• Small commercial premises with compatible single-phase loads
• Workshops after verification of continuous and starting demand
• Refrigeration, lighting, office electronics and selected domestic appliances
• Sites requiring separately engineered generator or utility backup integration

Official Appliance-Use Examples

The official package catalogue presents the following illustrative scenario using Türkiye's annual-average four-hour daily sunshine assumption:

• 2 x A++ energy-class refrigerators: 72 hours
• 1 x A-class washing machine at 30°C: 6 hours per day
• 1 x A-class dishwasher in economy mode: 4 hours per day
• 2 x laptop computers: 24 hours, excluding peripherals
• 2 x 67-inch LCD/LED televisions: 12 hours
• 14 x 5 W LED lamps and 12 x 11 W energy-saving lamps: 24 hours
• 1 x vacuum cleaner: 3.5 hours

Eight each of mobile-phone, toy, MP3 and radio charging loads: described by the source as unlimited-time charging

These examples must be presented as the manufacturer's illustrative package scenario, not as a promise that every load can operate simultaneously or for the same duration at every site. Appliance efficiency, duty cycle, battery state of charge, weather, season and system losses materially affect results.

Package Contents

• 26 x TT 425Wp 108TN M10 TOPCon Solar Panel
• 1 x TT MPlus 11K 48V MPPT Single Phase Smart Inverter
• 6 x TT Modular Series 51.2 V 100Ah LFP Lithium Battery
• 3 x LFP Lithium Battery-to-Inverter 1.5 m Power Cable Set
• 5 x Parallel LFP Lithium Battery Cable Set
• 5 x Battery-to-Battery Communication Cable
• 1 x Battery-to-Inverter Communication Cable
• 1 x NYAF 1.5 m Battery Grounding Cable
• 1 x TT Battery Metal Base
• 4 x SMC4-MC4 Female-Male Connector Set
• 75 x DC Black 1 m Solar Cable, 6.00 mm² cross-section
• 75 x DC Red 1 m Solar Cable, 6.00 mm² cross-section

Component Highlights

Solar module: The current official TT425-108TN10 sheet publishes 425 Wp peak power, 21.76% module efficiency, 32.14 V maximum-power voltage, 38.31 V open-circuit voltage, IP68 junction-box protection, 1,722 x 1,134 x 30 mm dimensions and 21.45 kg module weight.

Inverter: The exact TT-MPLUS 11KW-48V reference provides 11 kW pure-sine-wave output, a 22 kVA surge rating, MPPT charging, built-in Wi-Fi, BMS communication, selectable AC/PV priorities and compatibility with a correctly integrated utility or generator input.

Battery: The official TT-MDL-48V-100AH manual publishes 51.2 V, 100 Ah and 5,120 Wh per battery, CAN/RS485 communication, IP65 protection and parallel operation up to 16 units. The package uses six batteries and must retain the package-specific power and communication arrangement.

Important Installation, Selection, Quotation and Safety Notes

• Prepare a 24-hour load schedule before selection. Record appliance power, daily operating time, simultaneous loads and the starting current of every motor, compressor, pump or transformer-based device.
• This is an 11 kW, 230 V single-phase package. Do not quote it for three-phase machinery or three-phase building distribution without a separately engineered solution.
• Do not copy the catalogue's 13x2 string arrangement directly into an installation design without current written confirmation. Using the current official TT425-108TN10 values, one 13-module string is approximately 417.82 V at Vmp and 498.03 V at Voc under STC. The published inverter limit is 500 V DC, leaving almost no STC margin; module Voc rises as cell temperature falls.
• Complete a minimum-temperature Voc calculation using the destination site's design temperature, the exact module tolerance and the exact inverter supplied. Obtain a revised string layout or written manufacturer approval where required.
• The package's 26 x 425 Wp array equals 11,050 Wp, while the official TT-MPLUS 11KW-48V sheet publishes 11,000 W maximum PV-array power. Confirm the allowed DC sizing and current supplied revision before quotation; do not silently round the package array down to 11 kWp.
• The official 44.2 kWh/day value is based on four hours of sunshine and nominal module power. Do not present it as guaranteed delivered energy; include temperature, shading, inverter, cable, battery and availability losses in the project yield model.
• The published 27.648 kWh available-energy value uses a 90% DOD assumption. It is not the same as usable AC energy after inverter and wiring losses and does not by itself establish overnight autonomy.
• Confirm required autonomy for cloudy weather, seasonal low-production periods and critical loads. A generator or other backup source may be required for continuity-sensitive sites.
• Pumps, compressors, refrigeration plant, air conditioning, resistance heating, welding equipment and workshop machinery require a dedicated load and starting-current assessment even when their nameplate power is below 11 kW.
• The inverter platform supports a utility or generator input, but source ratings, changeover behaviour, neutral/earth arrangement, charging current and protective devices must be designed for the site.
• Mounting structures, roof or ground-mount hardware, DC combiner/protection, fuses, breakers, isolators, surge protection, AC distribution, earthing, lightning protection, cable containment, civil works, installation and commissioning are not identified in the official package BOM. Confirm and quote each item separately.
• The official BOM lists 75 one-metre units of red and 75 one-metre units of black 6.00 mm² solar cable. Verify route length, voltage drop, conductor sizing and any additional cable requirement for the actual site.
• Install batteries in accordance with the exact battery manual. Use the specified battery-power, parallel and communication cables; configure the master/slave and BMS communication arrangement correctly.
• Installation, commissioning and maintenance must be completed by competent personnel using the current manuals and locally accepted protective practices.
• Before international shipment, confirm the current component revisions, destination-country conformity requirements, lithium-battery transport documentation, packaging and after-sales support arrangements.
• Obtain written confirmation of the final supplied BOM before quotation because the package catalogue is an official 2023-2024 document and the current component download centre includes newer product generations.

Product-Specific Source Reconciliation

• The live product page says “2 units A+++ Energy Class 72 Days”. The official package catalogue says 2 A++ energy-class refrigerators for 72 hours. Use the catalogue's 72-hour value and do not publish “72 days”.
• The live page says one laptop for 24 hours, while the official package catalogue says two laptops for 24 hours, excluding peripherals. If the exact quantity is published, use the catalogue wording and identify it as an illustrative scenario.
• The live page says one 170-screen television for 12 hours, while the official package catalogue says two 67-inch LCD/LED televisions for 12 hours. Do not combine these conflicting descriptions. The content above follows the package catalogue; confirm with CW Enerji if this claim will be used in sales material.
• The exact package code appears in the official package catalogue, not on the current live product page. Keep OFP-11KWE-48V-26P exactly as written.
• The package catalogue and current panel/inverter technical sheets create a material string-voltage and nominal PV-power validation issue. Keep the warning inside this product page and obtain the current manufacturer-approved configuration before quotation.
• Confirm whether the supplied panel remains TT425-108TN10, because the live BOM uses a family description while the current 425 Wp technical sheet provides the exact model reference.