Agriculture
December 31, 2023
Berkeley-Darfur Stove V.14
Read SolutionImplemented by
Potential Energy
Updated on June 27, 2024
·Created on August 31, 2021
A solar-powered radio with phone charging capabilities. Courtesy of WHO Compendium 2021
Encore Player MP3 is a solar-powered radio with the ability to charge a mobile phone. The radio also includes a task light. As a power backup, the unit can also be manually powered using a winding mechanism.
This product was selected for inclusion in WHO’s 2021 Compendium of Innovative Health Technologies for Low‐Resource Settings.
Target SDGs
SDG 3: Good Health and Well-Being
SDG 7: Affordable and Clean Energy
Market Suggested Retail Price
$85.00
Target Users (Target Impact Group)
Community
Distributors / Implementing Organizations
Freeplay Energy, UNICEF
Competitive Landscape
Direct competitors include d.Light D180 and Azuri 10W Quad Solar Home System.
Regions
Worldwide
Manufacturing/Building Method
The radios are manufactured in China. Components include external solar panel, an 8GB SD card, aerial kit, and mobile phone charging kit, among others.
Intellectural Property Type
Patent
User Provision Model
Direct sales
Distributions to Date Status
50,000+
Type of service
Radio
Telecommunication service required
Radio frequency
Fixed network connection required (Y/N)
No
Additional device required
A solar panel can be used to power the device
Two way communication (Y/N)
No
Battery life (hours)
30 hours
Network capacity
Unknown
Power requirements
1 W during active use
Average packet loss
Unknown
Application
Radio, light
Design Specifications
Encore Player MP3 can be powered with either a solar panel or hand-crank mechanism. The main components of the radio include the external solar panel, an 8GB SD card, aerial kit and mobile phone charging kit. SD cards can be pre-loaded with educational content for users. The radio is designed to be portable and includes a handle for carrying.
Technical Support
Provided by the manufacturer
Replacement Components
Battery
Lifecycle
5-10 years
Manufacturer Specified Performance Parameters
Designed for use in off-grid communities
Vetted Performance Status
Encore Player MP3 has been tested and certified for a number of standards, including audio and visual quality.
Safety
No known safety hazards are related to this product
Complementary Technical Systems
An external solar panel can be used to power the device
Academic Research and References
Yildiz, F., 2009, Potential Ambient Energy-Harvesting Sources and Techniques, Journal of Technology Studies, 35, pp. 40-48
Freeplay Energy – Wind up and solar powered products. (n.d.). Freeplay Energy. Retrieved June 27, 2024, from https://www.freeplayenergy.com
UNICEF. (n.d.). Unicef.Org. Retrieved June 27, 2024, from https://www.unicef.org/
Goal 3. (n.d.). Sdgs.Un.Org. Retrieved June 27, 2024, from https://sdgs.un.org/goals/goal3
Goal 4. (n.d.). Sdgs.Un.Org. Retrieved June 27, 2024, from https://sdgs.un.org/goals/goal4
(N.d.). Engineeringforchange.Org. Retrieved June 27, 2024, from https://www.engineeringforchange.org/wp-content/uploads/2021/03/00126_02_Instruction-ENCORE-703-English-pg-1.pdf
(N.d.). Engineeringforchange.Org. Retrieved June 27, 2024, from https://www.engineeringforchange.org/wp-content/uploads/2021/03/00126_03_Instruction-ENCORE-703-English-pg-2.pdf
Dot, R. (n.d.). How to use your Freeplay Encore MP3 Player. Engineeringforchange.Org. Retrieved June 27, 2024, from https://www.engineeringforchange.org/wp-content/uploads/2021/03/00126_04_Instruction-ENCORE-703-English-pg-3.pdf
Freeplay Energy – Wind up and solar powered products. (n.d.). Freeplay Energy. Retrieved June 27, 2024, from https://www.freeplayenergy.com
Compliance with regulations
SGS, EN 55013, EN 55020/A11, EN 55015, EN 61547, EN 61000-3-2/A1/A2, EN 61000-3-3
Evaluation methods
Performance testing
Other Information
None
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