Akwa Ibom State

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

Ikot Abasi has 25,586 buildings with a viable rooftop and 694 MWp of roof capacity. 73% run a generator, and together they spend ₦87.9bn a year on energy.

Viable buildings

25,586

Usable roof area

3.08 km²

694 MWp roof capacity

Energy spend

₦87.9bn/yr

84.8 GWh/yr burned on generators

Median payback

1.9 yr

Median IRR 55% (cash saved)

The savings bracket for Ikot Abasi

Approach B

Cash saved

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

Current energy spend₦87.9bn/yr

Year-one cash saved₦83.9bn

Lifetime cash saved₦4.12tn

NPV₦636bn

Median IRR55%

Median payback1.9 yr

Unlocked energy31.7 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity179 MWp

Capex₦177bn

Year-one energy value₦128bn

Lifetime energy value₦5.93tn

NPV₦972bn

Median IRR79%

Median payback1.4 yr

Three ways to size Ikot Abasi'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: 179 MWp
Capital cost: ₦177bn
Year 1 savings: ₦128bn/yr
NPV: ₦972bn
Median IRR: 79%
Median payback: 1.4 yr

The odds a rooftop in Ikot Abasi pays back quickly

Of the 25,571 buildings in Ikot Abasi with a modelled payback, 89.9% pay back inside five years and 71.8% inside three.

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How much of Ikot Abasi's demand actually gets met

Buildings in Ikot Abasi consume 129 GWh/yr but want 161 GWh/yr. The 20% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Ikot Abasi

Loading band economics…

How many rooftops in Ikot Abasi 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 25,571 buildings with a modelled result out of 25,586 in Ikot Abasi. 24,277 clear a positive NPV.

Payback

Under 3 years18,354 (72%)

Under 5 years22,992 (90%)

Under 7 years24,260 (95%)

Under 10 years24,776 (97%)

Return (IRR)

Above 10%24,660 (96%)

Above 15%24,277 (95%)

Above 20%23,360 (91%)

Above 25%18,671 (73%)

CO₂ avoided

135 kt/yr

Fuel avoided

43.7 million litres/yr

Energy unlocked

31.7 GWh/yr

Demand that is suppressed today

People served

195k

What hardware costs right now

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

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 Ikot Abasi

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
D	12,844	10,157	₦31.9bn	₦30.8bn	57%	1.9 yr
C	6,974	4,680	₦42.4bn	₦40.2bn	51%	2.1 yr
E	4,484	3,027	₦10.5bn	₦9.87bn	67%	1.6 yr
B	1,101	691	₦2.95bn	₦2.94bn	49%	2.1 yr
A	183	74	₦86.2m	₦85.8m	23%	4.6 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	24,405	17,540	₦59bn	₦56.2bn	55%	1.9 yr
Commercial General	442	411	₦2.92bn	₦2.91bn	55%	1.9 yr
Worship	286	264	₦883m	₦883m	55%	1.9 yr
Anchor	222	214	₦24.7bn	₦23.5bn	65%	1.6 yr
Commercial Retail	179	152	₦55.8m	₦55.8m	53%	2.1 yr
Industrial	48	44	₦265m	₦257m	55%	1.9 yr
Hospitality	2	2	₦40.9m	₦34.7m	41%	1.4 yr
Mall Retail	2	2	₦42.3m	₦42.3m	55%	1.9 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	9,552	7,035	₦22.7bn	₦21.9bn	57%	1.9 yr
50 100m2	5,694	4,051	₦3.46bn	₦3.41bn	55%	1.9 yr
Under 30m2	3,766	2,624	₦414m	₦410m	53%	1.9 yr
250 1000m2	3,303	2,569	₦35.3bn	₦33.2bn	57%	1.9 yr
30 50m2	3,203	2,286	₦758m	₦756m	55%	1.9 yr
Over 1000m2	68	64	₦25.2bn	₦24.2bn	51%	2.1 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban	9,245	7,262	₦33.8bn	₦31.6bn	63%	1.6 yr
Dense Urban	6,890	5,487	₦8.15bn	₦8.13bn	55%	1.9 yr
Urban Centre	6,286	4,399	₦35.9bn	₦34.6bn	55%	1.9 yr
Unclassified	2,556	1,330	₦9.6bn	₦9.04bn	47%	2.4 yr
Rural	609	151	₦480m	₦437m	23%	4.6 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	8,965	7,036	₦50.8bn	₦48.4bn	57%	1.9 yr
Residential Small	8,812	6,747	₦5.88bn	₦5.68bn	55%	1.9 yr
Shed	4,500	3,078	₦383m	₦383m	55%	1.9 yr
Residential Formal	1,981	572	₦355m	₦355m	23%	4.6 yr
Institutional	249	233	₦24.2bn	₦23.3bn	51%	2.1 yr
Commercial Corridor	184	170	₦1.13bn	₦1.13bn	57%	1.9 yr
Kiosk Shop	179	152	₦55.8m	₦55.8m	53%	2.1 yr
Place Of Worship	97	90	₦111m	₦111m	59%	1.9 yr
Worship Center	95	88	₦130m	₦130m	57%	1.9 yr
Commercial	82	82	₦231m	₦231m	49%	2.1 yr
Residential Informal	82	82	₦1.54bn	₦1.42bn	47%	2.4 yr
Educational Facility	74	71	₦608m	₦608m	71%	1.4 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	25,259	18,360	₦63bn	₦60.1bn
Industrial	327	269	₦24.9bn	₦23.8bn

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	25,052	18,121	₦61.5bn	₦58.8bn	55%	1.9 yr
Enterprise	267	255	₦25bn	₦23.7bn	63%	1.6 yr
SME High	267	253	₦1.4bn	₦1.4bn	55%	1.9 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
3.0	11,286	9,075	₦58.7bn	₦55.8bn
2.0	6,699	5,064	₦6.28bn	₦6.01bn
0.0	4,458	3,035	₦374m	₦374m
4.0	2,018	699	₦21.9bn	₦21.1bn
1.0	1,117	749	₦377m	₦375m
5.0	8	7	₦208m	₦208m