What Is Productive Use of Renewable Energy (PURE) in Farming?

A simple idea with a long name

For years, most off-grid solar in rural Kenya meant a panel on the roof, a few bulbs and somewhere to charge a phone. That changed lives, but it rarely changed income.

Productive use of renewable energy, usually shortened to PURE, is the next step. It means putting clean energy to work in a way that earns money or saves it. On a farm, that usually means water, drying or cold.

What PURE looks like on a Kenyan farm

Three uses come up again and again in our work.

• •Solar water pumping: irrigating through the dry season without paying for fuel, when vegetable prices are highest.
• •Solar drying: turning mango, pineapple, chillies or vegetables that would rot in the glut season into a product that keeps for months.
• •Solar cold storage: freezers for fish traders and dairy farmers, and cold rooms for farmer groups, so produce can wait a few days for a better buyer.

What makes a PURE project work

We have seen good equipment sit unused because nobody thought past installation day. In our experience, the projects that last have a few things in common.

• •They solve a money problem the farmer already feels, like a fuel bill or produce lost every season.
• •The system is sized for the actual water source, crop or volume, not the biggest kit in the catalogue.
• •Farmers are trained to run it and know who to call when something goes wrong.
• •There is a market for what comes out: a buyer for the dried fruit, a reason to store the milk.

Where Symnet fits