Akwa Ibom State

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

Oruk Anam has 49,374 buildings with a viable rooftop and 1.12 GWp of roof capacity. 40% run a generator, and together they spend ₦40.8bn a year on energy.

Viable buildings

49,374

Usable roof area

4.97 km²

1.12 GWp roof capacity

Energy spend

₦40.8bn/yr

37.4 GWh/yr burned on generators

Median payback

4.6 yr

Median IRR 23% (cash saved)

The savings bracket for Oruk Anam

Approach B

Cash saved

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

Current energy spend₦40.8bn/yr

Year-one cash saved₦39.7bn

Lifetime cash saved₦2.01tn

NPV₦315bn

Median IRR23%

Median payback4.6 yr

Unlocked energy26.3 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity155 MWp

Capex₦162bn

Year-one energy value₦140bn

Lifetime energy value₦6.67tn

NPV₦1.12tn

Median IRR93%

Median payback1.1 yr

Three ways to size Oruk Anam'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: 155 MWp
Capital cost: ₦162bn
Year 1 savings: ₦140bn/yr
NPV: ₦1.12tn
Median IRR: 93%
Median payback: 1.1 yr

The odds a rooftop in Oruk Anam pays back quickly

Of the 49,154 buildings in Oruk Anam with a modelled payback, 70.1% pay back inside five years and 39.9% inside three.

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How much of Oruk Anam's demand actually gets met

Buildings in Oruk Anam consume 50.4 GWh/yr but want 76.7 GWh/yr. The 34% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Oruk Anam

Loading band economics…

How many rooftops in Oruk Anam 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 49,154 buildings with a modelled result out of 49,374 in Oruk Anam. 40,139 clear a positive NPV.

Payback

Under 3 years19,633 (40%)

Under 5 years34,443 (70%)

Under 7 years40,081 (82%)

Under 10 years42,413 (86%)

Return (IRR)

Above 10%41,607 (84%)

Above 15%40,139 (81%)

Above 20%36,693 (74%)

Above 25%19,779 (40%)

CO₂ avoided

70 kt/yr

Fuel avoided

22.7 million litres/yr

Energy unlocked

26.3 GWh/yr

Demand that is suppressed today

People served

341k

What hardware costs right now

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

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 Oruk Anam

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
E	33,158	12,397	₦29.8bn	₦28.7bn	23%	4.6 yr
D	14,954	6,538	₦10.8bn	₦10.7bn	23%	4.6 yr
C	1,262	781	₦271m	₦271m	45%	2.4 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	48,247	18,694	₦35.1bn	₦34.5bn	23%	4.6 yr
Worship	414	383	₦791m	₦791m	59%	1.9 yr
Commercial General	296	266	₦1.66bn	₦1.66bn	57%	1.9 yr
Anchor	236	228	₦2.99bn	₦2.43bn	77%	1.4 yr
Commercial Retail	90	62	₦23m	₦23m	61%	1.6 yr
Productive Use	42	42	₦56.1m	₦56.1m	63%	1.6 yr
Industrial	40	32	₦148m	₦147m	67%	1.6 yr
Hospitality	8	8	₦23.9m	₦23.9m	63%	1.6 yr
Filling Station	1	1	₦771k	₦771k	63%	1.6 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	17,528	7,130	₦16.1bn	₦16bn	23%	4.6 yr
50 100m2	12,234	4,454	₦2.59bn	₦2.58bn	23%	4.6 yr
Under 30m2	7,999	3,019	₦320m	₦320m	9%	13.6 yr
30 50m2	6,575	2,350	₦720m	₦514m	15%	6.6 yr
250 1000m2	5,010	2,744	₦19.7bn	₦19.3bn	53%	2.1 yr
Over 1000m2	28	19	₦1.36bn	₦953m	67%	1.6 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban	31,245	11,924	₦27.7bn	₦27.2bn	23%	4.6 yr
Unclassified	7,334	1,509	₦4.69bn	₦4.5bn	23%	4.9 yr
Urban Centre	6,113	3,671	₦2.75bn	₦2.75bn	47%	2.4 yr
Dense Urban	4,046	2,324	₦4.87bn	₦4.43bn	65%	1.6 yr
Rural	636	288	₦767m	₦766m	23%	4.6 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	19,039	8,048	₦30.6bn	₦30.3bn	23%	4.6 yr
Residential Small	17,902	7,016	₦4.1bn	₦3.88bn	23%	4.6 yr
Shed	11,305	3,629	₦376m	₦376m	9%	12.9 yr
Institutional	286	266	₦1.8bn	₦1.77bn	57%	1.9 yr
Worship Center	145	131	₦140m	₦140m	61%	1.6 yr
Place Of Worship	139	131	₦120m	₦120m	61%	1.6 yr
Kiosk Shop	128	100	₦74.8m	₦74.8m	61%	1.6 yr
Educational Facility	116	113	₦769m	₦769m	81%	1.4 yr
Commercial Corridor	66	55	₦299m	₦299m	65%	1.6 yr
School	63	60	₦235m	₦235m	79%	1.4 yr
Industrial Site	40	32	₦148m	₦147m	67%	1.6 yr
Market	39	33	₦84.2m	₦84.2m	63%	1.6 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	49,374	19,716	₦40.8bn	₦39.7bn

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	49,025	19,394	₦37.2bn	₦36.6bn	23%	4.6 yr
Enterprise	263	247	₦3.07bn	₦2.5bn	77%	1.4 yr
SME High	86	75	₦528m	₦528m	65%	1.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
2.0	17,382	6,758	₦7.34bn	₦7.08bn
3.0	16,319	7,851	₦32.1bn	₦31.2bn
0.0	11,318	3,641	₦379m	₦379m
1.0	4,311	1,426	₦606m	₦606m
4.0	42	38	₦353m	₦353m
5.0	2	2	₦63.6m	₦63.6m