GF1 Submersible Solar Pump

Graduate Farmer

The GF1 submersible solar pump is a submersible water pump that is specifically tailored towards solving irrigation farming pumping requirements.

Snapshot
Manufacturing & delivery
Performance & use
Research & standards
Feedback

Product description Brand name and product description

GF1 Submersible Solar Pump is a 12V/24V DC solar powered pump tailored for remote irrigation farming pump requirements. It was designed by Graduate Farmer to offer rural farmers a reliable, low-cost water pumping system that will enable them make better profit margins by increasing crop production during the dry season.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Kenya

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

Online retail in Kenya or purchase through Graduate Farmer local offices and stores around Kenya.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

~324 USD (35,000 KES)^{Converted on August 7 2020}

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Futurepump SF1, Lorentz PS600 CS-F, SDS-T-128 Submersible Solar Pump, SunCulture SP-300 Solar Pumping System, Majipump

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 2: Zero hunger

Target user(s) Target user/consumer base (country, income segment)

Young farmers

Manufacturing/building method(s) Detail regarding solution production or construction method (instructions, mass production capacity, custom made,etc...)

Batch production done in India. ^{Interview with representative}

Product Intellectual Property Open source/IP protected (note patent)/trade secret/other?

Patented. ^{Interview with representative}

User Provision Model Where can the product be purchased/acquired by end users?

Users can obtain the product from the Graduate Farmer website.

Distribution to date Number of units that have been deployed, downloads or users to date

~50 ^{Interview with representative}

Fields marked are sourced values that have been evaluated by the manufacturer or a third party, all others are design specifications.

Pump type

Description of the pump type

Solar submersible pump

Power requirement (W)

Power required, measured in watts

120 W

Average flow rate (L/min at specific head)

Manufacturer-specified discharge rate, measured at a specific head

12 L/min

Maximum head (m)

Maximum depth of water the pump can pull

100 m

Diameter (cm)

Piston nominal diameter, measured in centimeters

1.27 cm

Design specifications Component and Operation overview including power, portability, facility requirements, preventative maintenance and user training requirements

Design Specifications:

Pump type	Submersible solar powered
Required pressure	150 psi
Irrigation capacity	2 Acres
Power	Battery and charge controller (Lasts 12 hours when fully charged)
Wiring	50m Electrical cable

Product schematics Design and assembly illustrations

Product Schematics:

Technical support Technical support provided by

Provided by manufacturer

Replacement components Availability of replacement components (in-country, by order,...)

Available for order from manufacturer.

Lifecycle Disposal and warranty

25 years

Manufacturer specified performance targets Designer / Manufacturer specified targets

Performance targets:

Suitable for wells.
Anti-corrosion housing, stainless steel fasteners.
Can run dry for a short time when there is no water in the well.
The cost of operation and maintenance is negligible.
Useful for water pumping in remote areas without grid power.
Rugged and durable.
The solar pump is “direct current” which means you can use the pump directly with the solar panels without the battery and it starts working.

Vetted performance Findings of manufacturer evaluations or independent testing centers

Unknown^{Interview with representative}

Testing organizations Independent lab, academic research centers, etc.

Tested by the manufacturer together with local farmers.^{Interview with representative}

Safety Potential hazards / risks related to operation of this product

No specified safety precautions.

Complementary technical systems Performance of this product is improved with another technology (eg. Cookstoves and Wind-blocking skirts)

Graduate Farmer offers a wide range of solar powered devices for irrigation farming.

Academic research Academic research related to the product (e.g. published papers in peer-reviewed journals)

Agrawal, S., Jain, A., 2019, Sustainable deployment of solar irrigation pumps: Key determinants and strategies. Wiley Interdisciplinary Reviews: Energy and Environment, 8(2), e325.

Ali, B., 2018, Comparative assessment of the feasibility for solar irrigation pumps in Sudan. Renewable and Sustainable Energy Reviews, 81, pp. 413-420.

Hartung, H., Pluschke, L., 2018, The benefits and risks of solar-powered irrigation – a global overview. Food and Agriculture Organization of the United Nations and Deutsche Gesellschaft für Internationale Zusammenarbeit.

Lute, C., et al., 2019, A Method for Evaluating Unregulated Solar Irrigation Pumping Systems: Results and Observations. 2019 IEEE Global Humanitarian Technology Conference (GHTC), Seattle, WA, USA, 2019, pp. 1-8.

Schmitter, P., Kibret, K.S., Lefore, N., Barron, J., 2018, Suitability mapping framework for solar photovoltaic pumps for smallholder farmers in sub-Saharan Africa. Applied Geography, 94, pp. 41-57.

Compliance with regulations Product certifications and standards referenced by designer/manufacturer

Graduate Farmer Kenya products are designed in line with the Kenya Bureau of Standards (KEBS) regulations. ^{Interview with representative}

Evaluation methods Evaluation methods/protocols/guidelines referenced by designer or manufacturer.

Field tests with farmers locally. ^{Interview with representative.}

Other information

A Youtube video demonstrating the working of the pump.

Another Youtube video explaining how the pump works

In context photographs (0)

You can use the form below to contribute a photo of this product.

In context files & documents (0)

Feedback from users, customers & distributors

Please let us know your experience in using this product through comments below.

Snapshot

Product description Brand name and product description

Target region(s) Target region for distribution/implementation (listed by country if specified)

Kenya

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

Online retail in Kenya or purchase through Graduate Farmer local offices and stores around Kenya.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

~324 USD (35,000 KES)^{Converted on August 7 2020}

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Futurepump SF1, Lorentz PS600 CS-F, SDS-T-128 Submersible Solar Pump, SunCulture SP-300 Solar Pumping System, Majipump

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 2: Zero hunger

Target user(s) Target user/consumer base (country, income segment)

Young farmers

Manufacturing & delivery

Manufacturing/building method(s) Detail regarding solution production or construction method (instructions, mass production capacity, custom made,etc...)

Batch production done in India. ^{Interview with representative}

Product Intellectual Property Open source/IP protected (note patent)/trade secret/other?

Patented. ^{Interview with representative}

User Provision Model Where can the product be purchased/acquired by end users?

Users can obtain the product from the Graduate Farmer website.

Distribution to date Number of units that have been deployed, downloads or users to date

~50 ^{Interview with representative}

Performance & use

Fields marked are sourced values that have been evaluated by the manufacturer or a third party, all others are design specifications.

Pump type

Description of the pump type

Solar submersible pump

Power requirement (W)

Power required, measured in watts

120 W

Average flow rate (L/min at specific head)

Manufacturer-specified discharge rate, measured at a specific head

12 L/min

Maximum head (m)

Maximum depth of water the pump can pull

100 m

Diameter (cm)

Piston nominal diameter, measured in centimeters

1.27 cm

Design specifications Component and Operation overview including power, portability, facility requirements, preventative maintenance and user training requirements

Design Specifications:

Pump type	Submersible solar powered
Required pressure	150 psi
Irrigation capacity	2 Acres
Power	Battery and charge controller (Lasts 12 hours when fully charged)
Wiring	50m Electrical cable

Product schematics Design and assembly illustrations

Product Schematics:

Technical support Technical support provided by

Provided by manufacturer

Replacement components Availability of replacement components (in-country, by order,...)

Available for order from manufacturer.

Lifecycle Disposal and warranty

25 years

Manufacturer specified performance targets Designer / Manufacturer specified targets

Performance targets:

Suitable for wells.
Anti-corrosion housing, stainless steel fasteners.
Can run dry for a short time when there is no water in the well.
The cost of operation and maintenance is negligible.
Useful for water pumping in remote areas without grid power.
Rugged and durable.
The solar pump is “direct current” which means you can use the pump directly with the solar panels without the battery and it starts working.

Vetted performance Findings of manufacturer evaluations or independent testing centers

Unknown^{Interview with representative}

Testing organizations Independent lab, academic research centers, etc.

Tested by the manufacturer together with local farmers.^{Interview with representative}

Safety Potential hazards / risks related to operation of this product

No specified safety precautions.

Complementary technical systems Performance of this product is improved with another technology (eg. Cookstoves and Wind-blocking skirts)

Graduate Farmer offers a wide range of solar powered devices for irrigation farming.

Research & standards

Academic research Academic research related to the product (e.g. published papers in peer-reviewed journals)

Agrawal, S., Jain, A., 2019, Sustainable deployment of solar irrigation pumps: Key determinants and strategies. Wiley Interdisciplinary Reviews: Energy and Environment, 8(2), e325.

Ali, B., 2018, Comparative assessment of the feasibility for solar irrigation pumps in Sudan. Renewable and Sustainable Energy Reviews, 81, pp. 413-420.

Schmitter, P., Kibret, K.S., Lefore, N., Barron, J., 2018, Suitability mapping framework for solar photovoltaic pumps for smallholder farmers in sub-Saharan Africa. Applied Geography, 94, pp. 41-57.

Compliance with regulations Product certifications and standards referenced by designer/manufacturer

Graduate Farmer Kenya products are designed in line with the Kenya Bureau of Standards (KEBS) regulations. ^{Interview with representative}

Evaluation methods Evaluation methods/protocols/guidelines referenced by designer or manufacturer.

Field tests with farmers locally. ^{Interview with representative.}

Other information

A Youtube video demonstrating the working of the pump.

Another Youtube video explaining how the pump works

Feedback

In context photographs (0)

You can use the form below to contribute a photo of this product.

In context files & documents (0)

Feedback from users, customers & distributors

Please let us know your experience in using this product through comments below.

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Graduate Farmer

In context photographs (0)

In context files & documents (0)

Feedback from users, customers & distributors