Tanzania Has Enough Electricity Generation to Power an Economy. The NBS Survey Shows the Economy Is Not Yet Consuming It. The Gap Between Megawatts and Demand Is the Country's Next Energy Challenge.

DAR ES SALAAM — Tanzania has invested substantially and successfully in electricity generation. The Julius Nyerere Hydropower Project's 2,115MW, natural gas generation whose share of the electricity mix has expanded through Kinyerezi and related investments, the transmission grid at 8,500.38km, and installed capacity reaching 4,522.54MW by March 2026 represent infrastructure achievements whose scale would have been unimaginable a decade ago. The NBS Household Energy Consumption Survey 2023 raises the question that infrastructure success makes necessary: is the economy consuming what has been built? The survey's answer is that it is not, yet. Among the 71.2 percent of households with electricity access, 72.5 percent spend less than TZS 10,000 monthly. That consumption level, equivalent to approximately 30 to 40 kilowatt hours, is the usage profile of a household running lights and charging phones. It is not the usage profile of a household running a refrigerator, an electric cooker, a water pump, or any productive machinery. Why demand follows income, not infrastructure The economic logic connecting electricity consumption to income is direct and well-documented. Households do not consume electricity in the abstract. They consume it through appliances and equipment whose purchase and operation require income that currently exceeds what most Tanzanian households generate. A refrigerator costs TZS 500,000 to TZS 1,500,000 at retail. A household earning TZS 300,000 monthly cannot allocate a significant share of that income to refrigerator purchase, regardless of how reliable the electricity supply is. An irrigation pump serving a smallholder farm requires an upfront investment whose payback period must be evaluated against the farm's income projection. If the farm income is marginal, the pump investment is irrational regardless of electricity availability. This is why electricity consumption per capita correlates more strongly with GDP per capita than with installed generation capacity across the global dataset. Countries consume more electricity when their people earn more money, not simply when more generation capacity is installed. Tanzania's per capita energy consumption of 170kWh annually sits among the lower ranges for sub-Saharan African economies at comparable income levels. The FYDP IV target of 528kWh by 2030 is a reasonable ambition given the investment trajectory. Reaching it requires the income growth that creates appliance demand rather than primarily the generation investment that creates supply. The industrial demand dimension The household consumption picture is one dimension of the demand challenge. The industrial and commercial consumption dimension is equally important for understanding Tanzania's electricity demand trajectory. Manufacturing sector growth at 9.9 percent annually toward 2030, the FYDP IV target, implies substantial growth in industrial electricity demand. A textile factory, a food processing plant, a pharmaceutical manufacturer, and an electronics assembly operation all consume electricity at orders of magnitude higher than a household. TISEZA's 900-plus manufacturing project approvals in 2025 represent the demand pipeline whose commissioning, when factories enter production, will generate the industrial electricity consumption that changes the aggregate demand picture. The private sector credit growth of 23.6 percent in 2025, with mining and quarrying at 91.1 percent and manufacturing at double-digit growth, reflects the commercial investment whose electricity demand will grow as the investments become operational. Tanzania's electricity demand challenge is not permanent. It is transitional, the gap between infrastructure that has been built in advance of income growth and industrial capacity that will generate the demand the infrastructure was designed to serve. What a demand-focused energy policy looks like The policy implication is not that Tanzania should stop investing in generation. The 8,000MW target by 2030, requiring a further 3,477MW beyond current capacity, is correct for a growing industrial economy whose demand will accelerate as manufacturing investment matures. It is that energy policy must now simultaneously invest in demand stimulation alongside supply expansion. Electric cooking programmes that make the economics of switching from charcoal to electricity viable for middle-income households. Consumer finance products that allow households to acquire refrigerators, washing machines, and productive appliances on credit whose terms reflect their actual electricity savings. Agricultural electrification programmes that make irrigation pump economics commercially viable for smallholder farmers. Industrial park electricity rate structures that make manufacturing location decisions favour Tanzania over competing regional destinations. These are demand-side investments. They do not appear in the generation budget. Their economic return, measured in the electricity consumption and economic productivity they enable, is as significant as additional megawatts.