Solar Mini-Grids
Community-scale power for villages beyond the national grid.
Where individual solar home systems fall short of community electricity needs, a mini-grid can supply an entire village or market cluster from a central solar plant with battery storage, distributed through a local low-voltage network. This approach suits haor islands, char settlements, and other locations where extending the national grid is not imminently planned.
CZ Engineering designs mini-grids with metered connections for each household or shop, allowing operators to bill consumption fairly and recover operating costs over time — a structure similar to donor- and IDCOL-supported rural mini-grid projects implemented elsewhere in Bangladesh. Systems typically combine a central solar array, battery bank, and sometimes a backup generator for extended cloudy periods, all managed through a local control system.
Because mini-grids serve as long-term community infrastructure, we work closely with local government, NGOs, or cooperative operators from the earliest planning stage to agree on tariff structure, maintenance responsibility, and growth headroom for additional connections over time.
How it works
- 1
Community and load assessment
We survey household count, business activity, and anticipated growth to size the central plant and distribution network.
- 2
Stakeholder and tariff planning
We work with local operators, NGOs, or government partners to agree on connection tariffs and maintenance arrangements.
- 3
Plant and network construction
The central solar and battery plant is built alongside the low-voltage distribution network and household meters.
- 4
Commissioning and operator training
Local operators are trained to manage billing, basic troubleshooting, and day-to-day plant monitoring before formal handover.
Financing available
Mini-grid projects are typically structured with support from donor programmes, NGOs, or IDCOL-aligned rural electrification financing, given the community infrastructure nature of the investment.
Explore financing optionsKey benefits
- Brings metered, reliable electricity to entire villages or clusters
- Battery storage extends power availability into evening hours
- Scalable design allows additional household connections over time
- Local operator training builds long-term community ownership
- Reduces reliance on kerosene lighting and diesel generators community-wide
Specifications
- Typical Plant Size
- 10 kW – 100 kW
- Battery Storage
- Lithium iron phosphate, sized for 6 – 10 hours evening backup
- Distribution
- Low-voltage network with individual household meters
- Backup
- Optional diesel or biogas generator for extended low-sun periods
- Warranty
- 25-year panel performance, 10-year battery system
Ideal for
- • Haor and river island communities beyond near-term grid extension
- • Village markets needing reliable power for small shops and cold storage
- • NGOs and local governments planning rural electrification projects
- • Cooperative-run communities seeking shared, metered power infrastructure
Ready to put the sun to work?
Tell us about your property or project and our engineers will get back to you with a free, no-obligation solar assessment.