Energy- Solar Division

This division has got two distinct Divisions – Solar and Power (Transmission and Distribution).
The Solar division takes care of Roof-top (Off-grid) and On-grid Solar PV projects (Both Roof-top and Ground based) and products.
The Power (T & D) division takes care of Transmission lines from 11 kV to greater than 800 kV Double circuit in AC and also 800 kV DC transmission line.

Solar Division

This Division is the Flagship for the company in the coming years with several major installations being projected in the MW category.

  • The division undertakes Engineering, Procurement and Construction (EPC) contracts (Roof-top and Ground based) for both Off-grid and On-grid Solar PV projects within India at present for capacities ranging from 1 kW to several MW.
  • We are the authorized distributor for Solar Grid – Tie inverters of our Principals DELTA under their brand name SOLIVIA (Imported) starting from capacity of 2.5 kW till MW range.
  • We distribute Solar Off-grid Inverters and Solar Charge Controllers of 1kW, 2 KW, 2.5 kW, 3 kW and 5 kW capacity under our brand name of “SOLIN”.
  • We are the authorized distributor for Solar PV panels of our Principals DELTA under their brand name DELSOLAR (Imported) with conversion efficiency of the order of greater than 15%.
  • We are the authorized distributor for Solar PV panels of our Principals Vikram (Indian make).
  • The Division supplies Solar LED Home Lighting products and Solar LED Street Lighting products under its own brand name of “SOLIN”.
  • The division markets the Energy efficient Induction Lamps of our Principals RA Energy Systems Pvt Ltd for their LVD brand.


The division undertakes EPC contracts for its clients for both On – grid and Off- grid applications.
We provide the best competitive rates and complete the work as per agreed schedule.

SPV Roof Top installation
100 kW Roof top installation
On Grid Solar System - Complete Solution

SOLIVIA is the new brand of Delta’s solar inverters. SOLIVIA stands for “Solar Inverters for Versatile and Intelligent Applications”.

DELTA SOLIVIA brand solar inverters are supplied with a standard 5-year guarantee, which, of course, can be extended to 10 years on agreement at the time of purchase.

Efficiency & temperature:
The brand new SOLIVIA 3.0, SOLIVIA 3.3 and SOLIVIA 5.0 have a maximum efficiency of 96%. The Delta SOLIVIA Asia-Pacific solar inverters do not have fans, are dust tight (IP65), and operate over a wide range of temperatures.

Versatile applications
The SOLIVIA string inverters can be used with all common photovoltaic module types, even with back-contact and thin-film modules that require positive or negative DC grounding. With the optional grounding kit from Delta, the SOLIVIA inverters are a perfect fit for these applications.

State-of-the-art display
We improved the usability of our inverters with a new display that is brighter, offers a wider viewing angle and consumes less power.

The solar inverters are also fitted with overvoltage protection, heat protection, short circuit protection and over current protection. Delta’s SOLIVIA AP series meet all guidelines regarding safety standards, EMC and national requirements.

• Transformer with peak efficiency (96.0 %)
• Isolation of primary and secondary circuit
• Wide operating temperature ranges: -25 °C to +70 °C
• Full power up to 57 °C (without de rating)
• RS485 (EIA485) communication interfaces
• Intelligent MPP tracking
• Suitable for indoor and outdoor applications (IP65)
• Without fan (for 2.5 to 3.3 kVA models)
• Simple and direct on-screen data display (for 5 kVA model)


High Performance:
• Power tolerance of 0 to +3% provides a stable, high-energy system output
• Better performance under low light condition
• More power per unit area for cost effective installation

Engineering Excellence:
• Increased cell to frame clearance reduces the effects of soiling
• High wind/snow load tolerance (pass mechanical load test of 5400 pa)

Reliability & Certifications:
• 25-year limited warranty on power output 
• 5-year product warranty
• IEC 61215, IEC 61730

 module is identified by its high performance and excellent quality. These  modules provide positive and tight power tolerances of 0 to +3%, which offer a stable and high-energy system output. Higher efficiency leads to more power output and more saving on energy cost. With high efficiency solar cells, state-of-art manufacturing technology and long-term reliability proven by many international quality standard tests,


Ideal for On-Grid as well as Off-Grid applications
Available from 3Wp to 300Wp
Output Power Warranty:
Minimum 90% at the end of 10 years
• Minimum 80% at the end of 25 years
Certified by TUV to be in conformance with IEC61215, IEC61730 & Safety Class II
Certified by ETL to be in conformance with UL 1703 standard


Solin Solar Led Home Lights
SOLIN Solar powered LED Indoor lamps gives higher brightness at a very low power consumption. LED based lamps require very small Solar panels and batteries compared to conventional lights. The models available are 2 nos / 4 nos / 6 nos of 6 Watts LED lamps with suitable Solar panels and Battery capacities.


• High Intensity, uniform glare eliminated light.
• Long life LED light with 40,000 burning hours.
• No heat generated.
• No need of Bulb Replacements.
• Works on both Solar and AC Mains.
• Available in different fixtures


Solin Solar Led Street Lights

This system is designed for outdoor application in un-electrified remote rural areas. This system is an ideal application for campus and village street lighting. The system is provided with battery storage backup sufficient to operate the light for 12 hours daily.

The system is provided with automatic ON/OFF time switch for dusk to down operation and overcharge/deep discharge prevention cut-off with LED indicators. The SPV modules are reported to have a service life of 25-30 years.

Tubular Batteries provided with the solar street lighting system require lower maintenance; have longer life and give better performance as compared to pasted plate batteries used earlier.

The electronics provided give over-charge and over-discharge cut-off essential for providing battery and luminaries damage.

Off Grid Solar System - Complete Solution

Solin Off-Grid Inverters and Solin Charge Controllers

With a wide range of power management products that ranges beyond usual sources of power, RK TECH has created a distinct mark as solar energy solution provider power and developed SOLIN brand of Off-grid Inverters and Charge Controllers.



Home | About Us | Products & Services | Business Partners | Clientele | News | Online Enquiry | Contact Us | Privacy Policy

© 2011 RK Tech. All rights reserved   Powered By