Tata Social Enterprise Challenge 2026 Entry

Eliminating Farm-Gate Spoilage with Solar Thermal Micro-Chillers

Zero-Capex Pay-Per-Use cold storage & milk chilling for smallholder Indian farmers. Powered by Phase Change Material (PCM) thermal energy — no expensive battery replacement needed.

30%+

Loss Avoided

36 Hrs

Zero-Power Cooling

₹1.50

Per Kg / Day Storage

Modular Micro-Chiller Unit

Dual-Chamber 2 MT / 5 MT Solar Kiosk

Active
NASHIK CLUSTER #04 SOLAR INPUT: 4.2 kW
Chamber A (Dairy)
3.8°C

Milk Chilling

Chamber B (Horti)
6.2°C

Fresh Produce

Thermal Energy Storage (PCM) 92% Charged

Provides continuous $4^\circ\text{C}$ holding without sunlight or diesel generator for 36 hrs.

"Saved 220 liters of evening milk from turning sour during heavy load-shedding last week." — Ramesh Patil, Farmer, Sangamner

The Rural Cold-Chain Crisis

Why Smallholder Farmers Lose 30% of Produce Before Reaching Markets

India produces over 300 million metric tons of horticultural crops, yet severe first-mile cold storage deficits force distress sales and mass spoilage.

Extreme Heat Spoilage

Ambient temperatures exceeding $38^\circ\text{C}$ rapidly decompose tomatoes, berries, and leafy greens within 12 hours of harvesting.

Evening Milk Rejection

Up to $15\%$ of evening milk yields are rejected by formal dairies due to high bacterial counts caused by lack of immediate chilling.

Distress Price Selling

Without local storage, farmers are forced to accept bottom-tier pricing from local traders during evening market glut hours.

Capital Unfeasibility

Traditional $1,000 \text{ MT}$ cold rooms cost over $\text{₹}2\text{ Crores}$ and require dedicated multi-phase grid lines unviable for villages.

Game-Changing Innovation

How KrishiCool Grid Works

Combining solar thermal charging with Phase Change Materials (PCM) to deliver off-grid, maintenance-free micro-chilling at the farm gate.

01

Rooftop Solar PV Charging

Overhead $3.5\text{ kWp}$ solar array powers a specialized DC compressor during daylight hours, freezing encapsulated Phase Change Material (PCM) thermal plates.

02

PCM Thermal Energy Storage

Thermal energy is stored in non-toxic salt hydrate PCMs rather than costly lithium chemical batteries. Operates seamlessly for up to 36 hours without sunlight.

03

Pay-Per-Use Kiosk Kiosk & App

Farmers bring crates or milk cans, scan via USSD/WhatsApp, pay $\text{₹}1.50/\text{kg/day}$, and receive automated temperature receipt alerts on their phones.

Dual Income Revenue Architecture

Micro PPU Fees

₹1.50 - ₹2.00 / kg storage daily charged to farmers or FPOs

B2B Aggregation Commission

5% - 8% markup connecting pre-cooled produce directly to urban buyers

Carbon Offsets

Monetizing diesel displacement & avoided food decomposition methane

Interactive Financial Modeler

Pay-Per-Use Farmer ROI Calculator

Select your produce type and quantity to see how much income KrishiCool Grid saves by preventing distress selling and spoilage.

250 kg/day
50 kg 500 kg 1,000 kg
3 Days
1 Day (Overnight) 5 Days 10 Days
Estimated Monthly Outcome
+₹11,250

Additional Net Profit Generated

Spoilage Saved: 1,800 kg / mo
Price Premium Realized: +₹6.50 / kg
KrishiCool PPU Fee: ₹1,125 / mo
Income Increase Rate: +34.5%
Field Prototype Data (Nashik / Anand Cluster)

500 kg Prototype Telemetry Dashboard

Last ping: Just now
INTERNAL TEMP
4.1°C
Optimal (2°C - 8°C) Ambient: 39°C
PCM STORAGE CHARGE
88%
MILK BACTERIA INHIBITION
> 86.4%

Over 12 hours vs ambient control batch

SOLAR / GRID SOURCE
100% Solar Active

Grid completely bypassable

36-Hour Thermal Hold Performance (Zero Grid Power)

Comparing KrishiCool PCM thermal storage against standard ambient farm storage.

KrishiCool Inside (°C)
Unchilled Ambient (°C)
40°C 20°C 4°C (Safe Zone)
0 Hrs (Harvest) 12 Hrs (Night) 24 Hrs (Day 2) 36 Hrs (Transit)

Triple Bottom Line Impact

Aligned with UN Sustainable Development Goals

KrishiCool Grid creates verifiable economic uplift for smallholder farmers while reducing agricultural carbon footprints across rural clusters.

SDG 1

No Poverty

Increases smallholder net household income by $25\% - 40\%$ through price stabilization.

SDG 2

Zero Hunger

Prevents over 120 Metric Tons of food and milk spoilage per unit annually.

SDG 8

Decentralized Jobs

Empowers Women Self-Help Groups (SHGs) to operate micro-kiosks and earn steady commissions.

SDG 12

Responsible Supply

Reduces post-harvest loss in perishable supply chains near production origin.

SDG 13

Climate Action

Replaces diesel generators, offsetting $\approx 45\text{ tCO}_2\text{e}$ per micro-chiller annually.

Partner With Us

Bring KrishiCool to Your Village or FPO Cluster

We collaborate with Farmer Producer Organizations (FPOs), Dairy Cooperatives, NABARD, and Corporate CSR partners to deploy solar micro-chillers across rural India.

Registered HQ: Pune / Nashik Agri-Tech Corridor, Maharashtra, India
impact@krishicoolgrid.in
+91 98230 XXXXX / FPO Toll-Free Help Desk