The Zimbabwe Electricity Supply Authority (ZESA) has increased their prepaid power tariffs by 30%. We’ll breakdown the new price system in a bit.
Firstly, if you weren’t aware of how ZESA structures their tariffs, they use a stepped tariff system. This means that the first units you buy will be cheaper than the preceding. The new pricing system follows this tier system as follows:
The first 50 units, or kilowatt hours, have risen to to $2,25/kWh. The next 50 cost $4,51/kWh. The next 100 units cost $7,89/kWh.

This system is said to allow for a fair distribution of electricity costs between poorer households and upper class ones. As the bottom tier is cheaper, poor households are enabled to purchase the electricity they need for a lower cost. The highest energy users are the ones that will then need to pay the higher costs.
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