Updated on January 11, 2024

·

Created on June 30, 2017

Rahimafrooz Solar Home System

Upcoming Update

Rahimafrooz SHS is a solar home system that integrates a solar panel, batteries and accesories.

Tested By
  • BRAC University
Content Partners
Unknown

Author

Product Description

The Rahimafrooz Solar Home System (SHS) is a rooftop system that includes a solar panel, battery and accessories all made with locally manufactured materials in Bangladesh.

Target SDGs

SDG 7: Affordable and Clean Energy

SDG 12: Responsible Consumption and Production

Target Users (Target Impact Group)

Household, Small and Medium-sized Enterprises

Distributors / Implementing Organizations

Manufacturer and partner organizations such as the Rural Electrification Board (REB), Water and Power Development Authority (WAPDA), United Nations Development Programme (UNDP), United Nations High Commissioner for Refugees (UNHCR) and Bangladesh Power Development Board (BPDB) and others. The program has fund support from the World Bank, Gesellschaft für Technische Zusammenarbeit (GTZ), Asian Development Bank (ADB), and KFW by Infrastructure Development Company Ltd.Correspondence with manufacturer

Competitive Landscape

Direct competitors include Mobisol Solar Home System and Azuri Duo Solar Home System.

Manufacturing/Building Method

All of the components are mass produced by Rahimafrooz Bangladesh Ltd. The solar panels are manufactured in an automated PV module manufacturing plant, while the batteries are manufactured with production machineries through a environment-friendly manufacturing process in a Rahimafrooz Accumulators Ltd facility.

Intellectural Property Type

Select Type

User Provision Model

Users can obtain the product directly from Rahimafrooz.

Distributions to Date Status

Over 600,000

Description of power outputs

DC outlets

Description of light points

3 LEDs

Total lighting service (lumen-hours per solar-day)

3,000 – 7,000 lumen-hours per solar-day

Peak power rating (Wp)

20 – 90 Wp

Battery capacity (kWh; mAh)

15,000 – 55,000 Ah

Nominal battery voltage (V)

14.4 V

Battery type

Tubular battery

User replaceable battery (yes/no)

Yes

Remote system diagnostics (yes/no)

No

Payment structure

Monthly installments

Mobile service required (yes/no)

No

Design Specifications

Specifications for the 6 different solar home systems offered by Rahimafrooz:

Crystalline PV Module LED Tube LED Bulb Battery
20 W 5 W 500 Lu; 3 W 300 Lu 2 W 120 Lu 15 AH Tubular Deep Cycle Battery; 10hrs
30 W 5 W 500 Lu; 4 W 400 Lu 23 AH Tubular Deep Cycle Battery; 10hrs
45 W 7 W 700 Lu; 5 W 500 Lu4 W 400 Lu; 3 W 300 Lu . 30 AH Tubular Deep Cycle Battery; 10hrs
50 W
70 W 55 AH Tubular Deep Cycle Battery; 10hrs
90 W
 

Product Schematics

Technical Support

Provided by the manufacturer.

Replacement Components

Available from manufacturer

Lifecycle

Both the batteries and charge controllers have a 5 years lifecycle, whereas the PV solar panels have a 25 years lifecycle.

Manufacturer Specified Performance Parameters

The manufacturers specify a high load bearing capacity capable of resisting high wind forces and snow load due to special acrylic foam tape used to fix the frame, guaranteed electrical performance as cell strings are produced through automated soldering technology under uniform pressure and thermal process, and highest personal safety and module robustness as Hi-Pot tester carries out hi-potential and ground continuity test for individual panel as their performance targets.

Vetted Performance Status

Unknown

Safety

If pressure is applied on the photovoltaic panel by sitting or stepping on it, the device might break and cause bodily injury or electrical shock. Precaution must be taken regarding electrical contacts or wiring, the person handling them must use adequate safety gear. To avoid electrical shock, the photovoltaic panel must be earth grounded. A minor risk of burns exists due to the heating of the photovoltaic panel's surface by the sun.

Complementary Technical Systems

Depending on the capacity of the system, appliances such as a TV, Radio or DC fan can be added.

Academic Research and References

Khan, S., 2012, Solar Home System (SHS) impact in Bangladesh. Brac University

Marro, P., Bertsch, N., 2015, Making Renewable Energy a Success in Bangladesh: Getting the Business Model Right, ADB South Asia working paper series

Compliance with regulations

IDCOL approved, IEC Certifications from TUV USA, UL Certifications USA

Evaluation methods

Unknown

Other Information

Rahimafrooz buys batteries back at the end of their service, paying users $4 - $6. Rahimafrooz received an Ashden Award in 2006. More details on Rahimafrooz Solae

Comments from the Community

5 Comments

  1. tom says:

    Hi! I am glad to add my feedback to this product posting.
    I find that having the web url in the product description is useful (http://www.rahimafrooz-solar.com/). Since there are so many SHS products in the world today, a bit more differentiating details of Rahimafrooz against all the others may be helpful in the product description as well.
    For the competitive landscape, to my knowledge, Rahimafrooz is for the majority deploying solar in Bangladesh. Although SHS companies like Mobisol, Azuri, Mkopa, Simpa Networks all have similar products, they aren’t necessarily competing with Rahimafrooz (unless any of them have operations and sales in Bangladesh). A different wording in the competitive landscape may better reflect that reality. Otherwise, looks good for this section,.

  2. tom says:

    Looks good!

  3. tom says:

    Looks good! The below article could be an interesting tidbit to add in the other information section:
    https://www.ashden.org/winners/rahimafrooz-renewable-energy

  4. tom says:

    Is there a way to list all the power ratings, battery capacities, lumens, etc across all product offerings in the white/yellow rows? When I only see 50W at first, I think there is only one product offering @ 50W. Then I scroll down and see the table with the 6 product offerings. I find consistent redundancy helpful with the SL posts. For example the power rating ranges for the products (20-90W) could be included in the product description.

    I’m not sure the BRAC University hyperlink is helpful, since it directs me to the BRAC university homepage. Do you have a link to the report of the testing or reporting they conducted?

  5. tom says:

    Is the 600k number validated with a date? When I clicked on the link, I couldn’t see a date. If you’re able to get confirmation from Rahimafrooz that’d be helpful.

Leave a Reply

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