Akwa Ibom State

Rooftop solar in Uyo, Akwa Ibom: what the roofs are worth

Uyo has 134,429 buildings with a viable rooftop and 3.73 GWp of roof capacity. 24% run a generator, and together they spend ₦49.5bn a year on energy.

Viable buildings

134,429

Usable roof area

16.6 km²

3.73 GWp roof capacity

Energy spend

₦49.5bn/yr

28.4 GWh/yr burned on generators

Median payback

4.6 yr

Median IRR 23% (cash saved)

The savings bracket for Uyo

Approach B

Cash saved

What these buildings stop paying — merit order, capped at current spend.

Current energy spend₦49.5bn/yr

Year-one cash saved₦49.2bn

Lifetime cash saved₦2.94tn

NPV₦381bn

Median IRR23%

Median payback4.6 yr

Unlocked energy87.9 GWh/yr

Approach A

Energy value (upper bracket)

What the energy is worth if full latent demand were met. Not cash saved.

Installed capacity364 MWp

Capex₦318bn

Year-one energy value₦178bn

Lifetime energy value₦8.27tn

NPV₦1.28tn

Median IRR59%

Median payback1.9 yr

Three ways to size Uyo's rooftops

Solar + battery. The default headline scenario, and the one the SEO fact base quotes. Prices the energy a full solar+storage system would deliver.

Baseline: mixed

Counterfactual: grid when available, generator otherwise, weighted by the NTL-derived grid availability. The realistic case, and what the headline numbers use. Always falls between grid and genset by construction.

Read with care: Sized to LATENT demand — the energy the building would use if it could. Against a cash baseline that only reflects today's spend this looks oversized; that is what sc3 exists to fix.

System size: 364 MWp
Capital cost: ₦318bn
Year 1 savings: ₦178bn/yr
NPV: ₦1.28tn
Median IRR: 59%
Median payback: 1.9 yr

The odds a rooftop in Uyo pays back quickly

Of the 130,545 buildings in Uyo with a modelled payback, 61.7% pay back inside five years and 15.7% inside three.

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How much of Uyo's demand actually gets met

Buildings in Uyo consume 145 GWh/yr but want 233 GWh/yr. The 38% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Uyo

Loading band economics…

How many rooftops in Uyo actually pay

Counted building by building on the cash-saved basis (merit-order sized, valued against what the building spends today), not read off an average. Shares are of the 130,545 buildings with a modelled result out of 134,429 in Uyo. 103,903 clear a positive NPV.

Payback

Under 3 years20,472 (16%)

Under 5 years80,495 (62%)

Under 7 years103,548 (79%)

Under 10 years117,467 (90%)

Return (IRR)

Above 10%115,844 (86%)

Above 15%103,903 (77%)

Above 20%87,235 (65%)

Above 25%39,113 (29%)

CO₂ avoided

122 kt/yr

Fuel avoided

14 million litres/yr

Energy unlocked

87.9 GWh/yr

Demand that is suppressed today

People served

227k

What hardware costs right now

Median advertised rates from our Nigerian market tracker — the same prices used to cost a system in Uyo.

Solar panels

₦250

₦/W

Inverters

₦127,419

₦/kVA

Batteries

₦177,500

₦/kWh

Full price tracker Size a home system Size a business system

Building mix in Uyo

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
B	77,397	16,806	₦21.4bn	₦21.2bn	23%	4.6 yr
A	27,878	3,942	₦7.96bn	₦7.96bn	23%	4.6 yr
C	21,808	6,860	₦14.3bn	₦14.3bn	25%	4.6 yr
D	5,011	2,898	₦3.29bn	₦3.25bn	49%	2.1 yr
E	2,335	1,735	₦2.48bn	₦2.48bn	67%	1.6 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	121,758	29,481	₦20.9bn	₦20.8bn	23%	4.6 yr
Commercial General	7,441	1,560	₦18.8bn	₦18.8bn	33%	3.1 yr
Commercial Retail	3,278	761	₦414m	₦414m	31%	3.4 yr
Worship	742	171	₦524m	₦524m	33%	3.4 yr
Anchor	669	162	₦7.41bn	₦7.29bn	39%	2.9 yr
Hospitality	310	61	₦1.02bn	₦1.02bn	33%	3.4 yr
Mall Retail	90	16	₦203m	₦203m	33%	3.1 yr
Productive Use	73	10	₦34.1m	₦34.1m	33%	3.4 yr
Industrial	42	11	₦130m	₦129m	35%	3.1 yr
Filling Station	15	4	₦10.5m	₦10.5m	33%	3.4 yr
Automotive	11	4	₦5.07m	₦5.07m	29%	3.6 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	46,195	11,275	₦13.4bn	₦13.4bn	23%	4.6 yr
Under 30m2	24,946	5,962	₦557m	₦550m	11%	7.6 yr
250 1000m2	23,463	5,589	₦24.4bn	₦24.3bn	23%	4.6 yr
50 100m2	23,232	5,443	₦1.72bn	₦1.72bn	19%	5.6 yr
30 50m2	16,270	3,835	₦650m	₦575m	15%	6.6 yr
Over 1000m2	323	137	₦8.72bn	₦8.67bn	31%	3.4 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban Centre	130,655	31,213	₦47.3bn	₦47bn	23%	4.6 yr
Unclassified	3,263	880	₦2bn	₦1.98bn	23%	4.6 yr
Urban	511	148	₦185m	₦185m	23%	4.6 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential Formal	55,751	9,410	₦3.61bn	₦3.6bn	21%	4.9 yr
Residential Informal	29,950	3,777	₦2.07bn	₦2.07bn	21%	4.9 yr
Residential	16,722	7,554	₦13.7bn	₦13.7bn	25%	4.6 yr
Residential Small	12,019	5,379	₦1.22bn	₦1.15bn	23%	4.6 yr
Shed	7,316	3,361	₦340m	₦340m	21%	5.1 yr
Commercial Corridor	3,589	765	₦9.66bn	₦9.66bn	33%	3.1 yr
Kiosk Shop	3,284	765	₦379m	₦379m	31%	3.4 yr
Commercial	2,252	446	₦4.73bn	₦4.73bn	33%	3.1 yr
Unknown	782	186	₦1.52bn	₦1.52bn	29%	3.6 yr
Commercial	504	80	₦2.02bn	₦1.99bn	33%	3.4 yr
Worship Center	336	74	₦145m	₦145m	33%	3.4 yr
Place Of Worship	329	67	₦101m	₦101m	33%	3.4 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	134,099	32,198	₦49.2bn	₦48.9bn
Retail	329	43	₦205m	₦205m
Commercial	1	0	₦71.8m	₦71.8m

Not published for this cube: Median IRR, Median payback.

Lead segment

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Standard	127,568	30,807	₦26.8bn	₦26.7bn	23%	4.6 yr
SME High	6,189	1,267	₦15.2bn	₦15.2bn	33%	3.1 yr
Enterprise	672	167	₦7.43bn	₦7.31bn	39%	2.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
4.0	48,533	8,180	₦12.6bn	₦12.6bn
3.0	38,606	10,830	₦21.1bn	₦21bn
2.0	30,111	7,764	₦2.22bn	₦2.14bn
0.0	7,085	3,351	₦337m	₦337m
1.0	5,181	1,191	₦114m	₦114m
5.0	3,867	737	₦7.78bn	₦7.78bn
6.0	1,046	188	₦5.3bn	₦5.3bn