The encyclopedia · Finance & Accounting · Financial decision · 2003–2018
IDCOL's micro-loan dealer network sold 4.1M solar home systems in Bangladesh
Instead of subsidizing hardware, IDCOL lent tiny sums through 58 NGO partners so rural Bangladeshis bought their own solar systems—4.1M units for 20M people.
Infrastructure Development Company Ltd (IDCOL)
The solution
Bangladesh's rural settlements are scattered across rivers and flood plains, which made grid extension prohibitively expensive; in 2003 the government and the World Bank launched a 50,000-household pilot so remote families could buy solar home systems instead of waiting for wires.
The mechanism was financing, not subsidy. IDCOL on-lent World Bank money to 58 partner NGOs and microfinance institutions, which sold and installed the systems and collected repayments in tranches as low as $100; the government carried foreign-exchange risk while customers supplied down payments, paid interest and partner organizations put in $219 million of equity.
The model scaled: by 2018 more than 4.1 million systems were sold, bringing electricity to about 20 million people—at its peak roughly 16 percent of the rural population. The program also avoided an estimated 9.6 million tonnes of CO2 and 4.4 billion litres of kerosene consumption.
World Bank financing across the two RERED projects reached $726 million, and the same dealer-financing playbook was extended to solar irrigation, mini-grids, rooftop solar and solar farms.
Why it worked
- Loans, not grants, made every buyer an investor, so systems had to work to keep repayments flowing.
- 58 partner NGOs already knew their villages, turning distribution into a local business rather than a donor delivery.
- Quality standards, warranties and inspections prevented a race to the bottom as volume grew.
- Tranches as small as $100 let a poor household buy a system with cash flow, not savings.
What can be applied
Don't subsidize hardware: finance the purchase through an existing microcredit network; repayment discipline and quality standards build a market that outlasts the aid.
Aftermath
The program became the largest off-grid solar program in the world and a template for Africa, though the World Bank cautions that replication is harder where microfinance networks are thin and population density low. As the national grid expanded, SHS demand plateaued, and IDCOL and the World Bank shifted the same financing model to solar irrigation, mini-grids, rooftop solar and solar farms; the two RERED projects totaled $726 million in World Bank financing.
Sources
- Bangladesh Solar Home Systems Provide Clean Energy for 20 million People
- A Game-changer in Bangladesh's Growth Story: Solar Home Systems
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