View source for SPIS Design

{{SPIS Design}} {{Back to SPIS Toolbox}}
=== '''<span style="color: rgb(135, 150, 55);">Module Aim and Orientation</span>''' ===

This module provides information and tools for agricultural service providers on how to estimate the dimensions, type and financial viability of Solar Powered Irrigation Systems (SPIS)&nbsp;for a specific farming situation. An SPIS consists of multiple components that work under constantly varying daily and seasonal conditions. <span class="mw-customtoggle-SPIS3" style="color: blue; font-size: small; font-weight: bold; float: right; display: inline-block;"><span class="mw-customtoggletext">read more</span></span>
<div id="mw-customcollapsible-SPIS3" class="mw-collapsible mw-collapsed">
The design of a SPIS lays the foundation for the system’s technical, financial and environmental viability. In particular with regard to financial implications and the risk of unsustainable water abstraction, the decision requires thorough consideration. Therefore, this module is also highly relevant for financial service providers. This module should enable the advisor to judge whether the installation of an SPIS would be more suitable and viable than using alternative irrigation systems. The tools are described and referred to in the different process steps of this module. Important design parameters can be estimated with simplified formulas to gain insights into understanding a more detailed design. Given the complex interactions between the different components under different environments, the tools of this module do not replace a detailed technical design created by professionals in solar and irrigation technology.<br/>

In the '''[[SPIS - Get Informed|GET INFORMED]]''' mmodule the individual components of an SPIS, as well as common system configurations are described. For each component there are several alternative technologies that also react differently when designed in a particular configuration. Once the most suitable configurations of an SPIS are determined, methods for its promotion are described in the '''[[SPIS - Promote & Initiate|PROMOTE & INITIATE]]''' module. The design should consider the natural limitations of the environment to ensure a sustainable use of water and other resources, as described in the '''[[SPIS Safeguard Water|SAFEGUARD WATER]]''' module. The module, '''[[SPIS Finance|FINANCE]]''', gives an insight into financing SPIS components and configurations in different ways. Yet, the costs and financial viability are a key element of the design and therefore treated in the '''DESIGN''' module. The next modules, '''[[SPIS Set Up|SET UP]]''' and '''[[SPIS Maintain|MAINTAIN]]''', are closely linked to this module as they describe important issues that need to be considered when installing and maintaining the selected design.<br/>
</div>
=== '''<span style="color: rgb(135, 150, 55);">Process Steps</span>''' ===

Before designing an SPIS, it is important to assess the opportunities and threats of an SPIS in a particular area. The institutional setting and environmental aspects, as described in the '''[[SPIS - Promote & Initiate|PROMOTE & INITIATE]]''' and the '''[[SPIS Safeguard Water|SAFEGUARD WATER]]''' modules, are important framework conditions. <span class="mw-customtoggle-SPIS4" style="color: blue; font-size: small; font-weight: bold; float: right; display: inline-block;"><span class="mw-customtoggletext">read more</span></span>
<div id="mw-customcollapsible-SPIS4" class="mw-collapsible mw-collapsed">
In addition, local, up-to-date information on markets for input and output (crop sales) and other information are key to deciding whether designing an SPIS for a particular location makes sense at all. Once it is confirmed that an SPIS is the preferred option, it is crucial that design adheres to the intended use. Once the crop water requirements, solar radiation and system pressure have been established, the technical design can then be prepared. The technical planner can choose from a number of methods of varying complexity and accuracy to come up with a final design. Before deciding on a particular contract provider, the cost quotation from the system integrator should be thoroughly assessed.<br/>
</div>
=== '''<span style="color: rgb(135, 150, 55);">Chapters</span>'''<br/> ===

'''1. [[SPIS Toolbox - Collect Data|Collect data]]'''<br/>'''2. [[SPIS Toolbox - Analyze Agricultural Production Options|Analyze agricultural production options]]'''<br/>'''3. [[SPIS Toolbox - Determine Water Requirements and Availability|Determine water requirement and availability]]'''<br/>'''4. [[SPIS Toolbox - Select SPIS Configuration|Select SPIS configuration]]'''<br/>'''5. [[SPIS Toolbox - Estimate System Size and Costs|Estimate system size and costs]]'''<br/>'''6. [[SPIS Toolbox - Assess Financial Viability|Assess financial viability]]'''<br/>'''7. [[SPIS Toolbox - Pre-select Potential Suppliers|Pre-select potential suppliers]]'''<br/>'''8. [[SPIS Toolbox - Evaluate Quotations and Assess Quality|Evaluate quotations and assesses quality]]'''<br/>'''9. [[SPIS Toolbox - Contract Supplier|Contract supplier]]'''<br/>

=== '''<span style="color: rgb(135, 150, 55);">Supplementary Tools</span>''' ===

*'''[[:File:DESIGN – Site Data Collection Tool V0.3.xlsx|DESIGN – Site Data Collection Tool]]'''
*'''[[:File:DESIGN_–_SPIS_Suitability_Checklist V0.2.xlsx|DESIGN – SPIS Suitability Checklist]]'''
*'''[[:File:DESIGN_–_Pump_Sizing_Tool V0.2.xlsx|DESIGN – Pump Sizing Tool]]'''
*'''[[:File:DESIGN – Pressure Loss Tool V0.2.docx|DESIGN – Pressure Loss Tool]]'''
*'''[[:File:DESIGN_–_Simplified_Financial_Viability_Tool V0.3.xlsx|DESIGN – Simplified Financial Viability Tool]]'''

=== '''<span style="color:#879637">Further Readings </span>'''<br/> ===
*Alfredson, T. & Cungu´, A. (2008): Negotiation Theory and Practice. A Review of the Literature. FAO. Retrieved from [http://bit.ly/2p5mRM6 http://www.fao.org/docs/up/easypol/550/4-5_negotiation_background_paper_179en.pdf]
<span class="mw-customtoggle-SPIS38" style="font-size:small; font-weight: bold; display:inline-block; float:right; color: blue"><span class="mw-customtoggletext">read more</span></span>
<div id="mw-customcollapsible-SPIS38" class="mw-collapsible mw-collapsed">
*Food and Agriculture Organization: Land & Water. Retrieved from [http://www.fao.org/land-water/en/ http://www.fao.org/land-water/en/]

*GRUNDFOS. Retrieved from [http://de.grundfos.com/ http://de.grundfos.com/]

*The Grundfos sizing software is called WebCAPS and can be found at [http://net.grundfos.com/Appl/WebCAPS http://net.grundfos.com/Appl/WebCAPS]. It works only for the company’s borepump products, the SQF range, although the site gives you the option of selecting surface pumps.

*Irrigation Association (2017): Irrigation Glossary. Retrieved from [http://www.irrigation.org/IAGlossary http://www.irrigation.org/IAGlossary]

*LORENTZ: Submersible Solar Pumps. Retrieved from [https://www.lorentz.de/products-and-technology/pump-types/submersible-solar-pumps https://www.lorentz.de/products-and-technology/pump-types/submersible-solar-pumps]

*NASA (2016): Surface meteorology and Solar Energy. With the cooperation of Atmospheric Science Data Centre. Retrieved from [http://eosweb.larc.nasa.gov/sse http://eosweb.larc.nasa.gov/sse]
</div>
{{SPIS Magic Words}}