Namakkal, Tamil Nadu | Solar Pumps Tool Made with Humane Club

Namakkal, Tamil Nadu

In the district, horticulture crops occupy a relatively high proportion of gross cropped area, raising the economic viability of solar pumps here. Overall, the water availability for irrigation in the district (based on ground water development and long-term trends of water level decline) is critical since the resource is overexploited, jeopardizing the long-term sustainability of solar pumps. The average monthly per capita expenditure of rural agricultural households is relatively high for the district, suggesting higher purchasing capacity of the farmers here. For average crop revenue per holding, the district appears among the top 25 percentile of districts, implying higher investment capacity of the farmers here. The district has a relatively high penetration of banks in rural and semi-rural areas, facilitating higher access to institutional credit for farmers. The district has a relatively high proportion of small and marginal farmers. The district appears in the group of districts, which are (very) highly vulnerable towards climate change, as per an index constructed by CRIDA.

Deployment Approaches

Approaches Feasibility
Individually owned off-grid solar pumps Limited Suitability
Solarisation of feeders Limited Suitability
Solar based water as a service Limited SUitability
Promote 1 HP and sub-HP pumps Limited Suitability

Individually owned off-grid solar pumps

Limited Suitability

The district has a relatively high disbursement of institutional credit and high crop revenue per holding. However, ground water availability is below the safe limit, and concentration of diesel pump users is comparatively low, making it very difficult to promote the private ownership of solar pumps here.

Parameter Value Percentile
Number of cultivators reporting use of diesel pumps 5,953 33
Water Availability Index 0.18 13
Crop revenue per holding (INR) 155,465 77
Medium and long term institutional credit disbursed in a year (in INR Crore) 37.4 54

Solarisation of feeders

Limited Suitability

The district has a relatively high penetration of electric pumps, and its DISCOM has a rather high bulk power purchase rate, but the district has a comparatively low extent of feeder segregation. Solarisation of the feeders will only be possible once the district separates agricultural feeders from the rest.

Parameter Value Percentile
Power purchase rate for DISCOM (INR/kWh) 3.68 26
Extent of feeder segregation 0% 0
Proportion of cultivators reporting use of electric pumps 42% 87

Solar based water as a service

Limited SUitability

The district has a relatively high concentration of small and marginal farmers, and a rather high proportion of unirrigated area, but groundwater availability is below the safe limit. Water conservation and efficient irrigation practices (such as drip irrigation) should be considered while promoting solar-based water as a service, in order to improve the economic viability of the model, increase water availability, and decrease the effective cost of irrigation in the district.

Parameter Value Percentile
Water Availability Index 0.18 13
Proportion of small and marginal cultivators 89% 59
Unirrigated net sown area as a share of total net sown area 51% 42

Promote 1 HP and sub-HP pumps

Limited Suitability

The district has a relatively high proportion of gross cropped area under horticulture crops, a high concentration of marginal farmers and a comparatively high disbursement of institutional credit to marginal farmers, but groundwater availability is below the safe limit. Water conservation and efficient irrigation practices (such as drip irrigation) should be promoted to improve the viability of small capacity pumps.

Parameter Value Percentile
Area under horticulture crops as a share of gross cropped area 26% 84
Water Availability Index 0.18 13
Proportion of marginal cultivators 69% 58
Medium and long term institutional credit disbursed in a year (in INR Crore) 37.4 54

Leveraging Solar Pumps to Promote Policy Objectives

If you are deploying solar pumps in this district then you can further these policy objectives.

Har Khet ko Pani

A relatively high proportion of the net sown area in the district is unirrigated, indicating high irrigation demand. Solar pumps can help improve access to underground irrigation as part of Har_Khet_ko_Pani.

Parameter Value Percentile
Unirrigated net sown area as a share of total net sown area 51% 42

Doubling Farmers’ Income – Crop Intensity

A relatively high proportion of the district’s net sown area is unirrigated. Lack of access to irrigation is one of the major barriers to growing crops beyond two conventional seasons, rabi and kharif. Ensuring irrigation access through solar power will help improve cropping intensity and move towards the aim of doubling farmers’ income by 2022.

Parameter Value Percentile
Unirrigated net sown area as a share of total net sown area 51% 42

Climate Resilient Farming for Small Farms

Given the high concentration of small and marginal farmers—the most vulnerable group to climate change—and a high score on climate change vulnerability index provided by CRIDA*, the district is suitable for promoting climate resilient farming for small-sized farms. Solar pumps would assist in the same through low-carbon agriculture.

Parameter Value Percentile
Proportion of small and marginal cultivators 89% 59
Score on Climate Change Vulnerability Index 0.57 86

Per Drop More Crop

In the district, crops suitable for drip and sprinkler irrigation occupy a relatively high proportion of gross cropped area, making it easy to adopt such high precision irrigation methods. Solar pumps, along with other efficient and precise water application devices, could be deployed under Per Drop More Crop to promote efficient irrigation.

Parameter Value Percentile
Area under crops suitable for drip and sprinkler irrigation as a share of total cropped area 54% 89

Namakkal, Tamil Nadu
Summary
Number of operational holdings
234,542
Average size of operational holding (Ha)
0.91
No. of cultivators using diesel pumps
5,953
No. of cultivators using electric pumps
99,033
Parameters (value, percentile)
Unirrigated net sown area ('000 ha)
77
57
Area under horticulture crops as a share of gross cropped area
26%
84
Water Availability Index
0.18
13
Monthly per capita expenditure of rural agricultural households (INR)
2,488
94
Crop revenue per holding (INR)
155,465
77
No. of rural and semi-urban bank branches per 10,000 farmers
12.15
78
Medium and long-term institutional credit disbursed in a year (in INR Crore)
37.4
54
No. of calls made at Kisan Call Centre (between 1.1.2011 - 31.12.2015)
960
41
Level of farm mechanisation (tractors, harvesters, threshers per ha)
0.45
64