Zambia · 2024
The year the lake, and the lights, ran dry.
An El Niño drought drained Lake Kariba, the source of over 80% of Zambia's electricity, to record lows, and the country fell dark. But the people the grid never reached paid the most. Scroll through 2024 and watch the water, the light, and the harvest fall together.
Chapter One
The rains that didn’t come
Every drought in this story begins the same way, with a sky that stays clear when it should not.
Rainfall deficit, 2023-24 season · indicative, CHIRPS pattern
In a normal year, the rains sweep in around November and feed Zambia's fields and, downstream, the rivers that fill Lake Kariba.
The 2023-24 season came late, then barely came at all. An El Niño drought settled the deepest deficit over the south and west.
CHIRPS (Climate Hazards Center) · 2024 source ↗
Watching a sky that stayed clear
In planting season a farmer reads the sky for rain that the season never delivered. Across southern and western Zambia, the clouds that should have filled the fields, and eventually the lake, did not come.
A representative day, drawn from drought reporting across southern Zambia, 2024.
Rain that never falls on the fields never reaches the rivers either, or the great lake they feed. The shortfall was already moving toward Kariba.
Chapter Two
The lake remembers
Lake Kariba is the largest reservoir on Earth by volume. In 2024 it kept a record few wanted: how low it could go.
Kariba is not a natural lake but a memory of the Zambezi, the river dammed in 1959, its valley filled, its old shoreline drowned.
Through 2024 the water pulled back from its banks, exposing pale lakebed and, at the old edge, a brick-red stain marking where the lake once stood.
Copernicus Sentinel-2 / NASA MODIS · 2024 source ↗
By 2 September 2024, usable storage had fallen to about 8.3%, against roughly 26% a year earlier. A record low.
Zambezi River Authority · 2024-09-02 source ↗
The shore that kept moving
A boat that used to launch from the bank now starts from a longer walk across cracked, pale lakebed: ground that had been underwater for years, marked at its old edge by a brick-red stain where the water once stood.
A representative scene, grounded in reporting on Kariba’s receding shoreline, 2024.
Less water means less weight to turn the turbines. What the lake was losing, the country's lights were about to lose too.
Chapter Three
The day goes dark
This is the mechanic at the heart of the story: the lake and the lights, draining on one clock.
More than 80% of Zambia's electricity comes from moving water, most of it through Kariba's turbines.
ZESCO / IEA / news reporting · 2024
As the lake fell, ZESCO began rationing power. On 14 September 2024 it announced the Kariba North Bank station would shut down entirely.
ZESCO announcements & news reporting approximate · 2024
Load-shedding stretched toward 20 hours a day. For many households, the grid came to mean roughly three lit hours: a day mostly spent in the dark.
The café that became an office
In Lusaka, people hauled laptops, one woman her entire desktop tower, to Mercato Café because it had a diesel generator. Tables were strung with power strips; a coffee shop turned into the neighbourhood’s power supply.
Reported by AP / Euronews, Sept 2024.
The welder who went dark
A small-business welder described five days without power, his diesel generator sputtering out mid-sentence. The fuel to keep it running had become unaffordable. Without current, the work simply stops.
Reported by Africanews / AP, 2024.
The city rerouted itself around the generator's hum. But the city, at least, had a grid to lose.
Chapter Four
The unequal toll
The blackouts made the news. The deeper loss happened where the grid had never reached at all.
Drought toll by province · indicative, FEWS NET / WFP pattern
While the cities counted blackout hours, another Zambia went largely uncounted.
World Bank / national statistics · 2023
Around 90% of rural Zambians never had grid power to lose in the first place. Their crisis was not the lights. It was the harvest.
Southern Province was singled out in the reporting: scorched maize, dying livestock, families selling what animals survived.
FEWS NET / WFP · 2024 source ↗
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children under five at risk of severe wasting, the deadliest form of malnutrition.
UNICEF · 2024 source ↗
The people the grid forgot
In the worst-hit provinces, mothers cooked differently and children did homework by candlelight, but the deeper loss was food: scorched maize, dying livestock. UNICEF warned that more than 50,000 children under five were at risk of severe wasting. They never had the mains power the cities mourned; now they were losing their harvest too.
Reported by Al Jazeera; malnutrition figure: UNICEF, 2024.
The drought took light from the cities and food from the countryside. The people already on the margins paid the most.
Chapter Five
What a country runs on
The lake recovered. That is the good news, and the warning, in a single line.
Kariba usable storage, 2024-2026 · illustrative, anchored to ZRA reporting
The rains returned. Through 2025 and into 2026, Kariba slowly refilled toward the level it held before the drought.
But recovery is not the same as safety. A country that draws more than 80% of its power from a single lake is always one dry year from the dark.
ZESCO / IEA / news reporting · 2024
A different thing to run on
The rains returned and the lake began to refill into 2025-26. But a country that draws more than 80% of its power from one reservoir learned what a single dry year can cost, and why solar and a wider mix are no longer optional.
Forward-looking context; lake recovery per Zambezi River Authority, 2025-26.
Water left, and light left, and the people already on the margins paid the most. The lake came back. The lesson should stay.
Provenance
Sources
- Kariba usable storage
~8.3% usable storage on 2 Sep 2024, versus ~26% a year earlier, a record low for the reservoir.
- Lake level
Weekly lake level (m above datum), Kariba reservoir.
- Hours of mains power approximate
Approximate daily hours of mains power, falling toward ~3 hours/day; load-shedding reached ~20 hours/day. Kariba North Bank shutdown announced 14 Sep 2024.
- Grid dependence on hydro
Over 80% of Zambia's electricity is hydropower, the bulk of it from Kariba.
- Rural electricity access
Around 90% of rural Zambians lacked electricity access before the crisis. They never had the grid power the country mourned losing.
- Rainfall anomaly
The 2023-24 rainy season delivered a severe deficit across southern and western Zambia during the planting window.
- Satellite imagery
Lake Kariba shrinking across 2024; the brick-red historic high-water stain exposed.
- Child malnutrition risk
More than 50,000 children under five at risk of severe wasting, the deadliest form of malnutrition, across drought-hit areas.
- Food security
Crop failure and livestock losses concentrated in Southern Province and other worst-hit areas; emergency food-insecurity classifications.
- Population distribution
Where people live across Zambia, used to weigh who the worst-hit areas contain.
- Province boundaries
Zambia administrative level 1 (province) boundaries.