I found a good paper giving a summary of energy production and renewable electricity generation in Malawi from 2015. Definitely worth a read.
And a slightly older one from 2012.
This page has some interesting statistics on Malawi energy production and consumption.
Quite humorous that it says "Malawi can provide itself completely with self-produced energy" which simply means it's using as much as it's producing, but ignores the fact that around 90% of the population don't have electricity. But amazing that per capita production is 78kWh vs Europe's 5900kWh, and obviously a carbon footprint proportional to that.
Electricity price list on ESCOM’s website
That puts the domestic (pre-paid, single-phase like UK) option at 47.5 Mk/KWh which translates to around 5.3p/KWh.
By comparison, I pay Bulb 13.3p/KWh in the UK. I think the Malawian price is subsidised at the lowest levels.
Energy production in Malawi is subject to the acts created in 2004 and subequent ones
Malawi National Energy Policy 2018
Malawi Department of Energy Affairs, following on from the Energy Policy of 2018, a Malawi Electricty Access Project has been initiated with $150 million in funding from the World Bank ($144m credit, $6m grant)
World Bank document on the Malawi Electricity Access Project (05/2019)
A recent (04/2019) report from a US body suggesting the opportunity for independent power producers in Malawi
ESCOM tariff document for 2018-2022, detailing current average purchase price from energy suppliers to be 49Mk/kWh = £0.055/kWh, which is similar to the UK
For comparison, here are some references for the UK
Ofgem website with wholesale electricity prices in the UK, seems to fluctuate around the 5p/kWh mark as well
Wikipedia page on solar power in the UK