CONRAD ONYANGO, BIRD STORY AGENCY FOR the past two decades, many rural homes in Africa have relied on solar home systems to meet their basic power needs, like lighting a few bulbs, charging the family's mobile phones and powering small appliances like radios and televisions. Now, larger off-grid systems known as mini-grids (MG's) capable of powering bigger appliances - like fridges, flour and maize mills and even welding equipment - are increasingly being installed in rural communities. “The mini-grid space continues to attract a lot of attention from development partners… There are already many MGs in operation and many more…