Akwa Ibom State

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

Etim Ekpo has 27,592 buildings with a viable rooftop and 619 MWp of roof capacity. 35% run a generator, and together they spend ₦18.8bn a year on energy.

Viable buildings

27,592

Usable roof area

2.75 km²

619 MWp roof capacity

Energy spend

₦18.8bn/yr

18.1 GWh/yr burned on generators

Median payback

4.6 yr

Median IRR 23% (cash saved)

The savings bracket for Etim Ekpo

Approach B

Cash saved

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

Current energy spend₦18.8bn/yr

Year-one cash saved₦18.2bn

Lifetime cash saved₦931bn

NPV₦145bn

Median IRR23%

Median payback4.6 yr

Unlocked energy13.8 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity83.2 MWp

Capex₦86.4bn

Year-one energy value₦75bn

Lifetime energy value₦3.57tn

NPV₦598bn

Median IRR95%

Median payback1.1 yr

Three ways to size Etim Ekpo'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: 83.2 MWp
Capital cost: ₦86.4bn
Year 1 savings: ₦75bn/yr
NPV: ₦598bn
Median IRR: 95%
Median payback: 1.1 yr

The odds a rooftop in Etim Ekpo pays back quickly

Of the 27,553 buildings in Etim Ekpo with a modelled payback, 68.0% pay back inside five years and 35.2% inside three.

Create a free account

How much of Etim Ekpo's demand actually gets met

Buildings in Etim Ekpo consume 25 GWh/yr but want 38.8 GWh/yr. The 36% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

Create a free account

Electricity billing bands in Etim Ekpo

Loading band economics…

How many rooftops in Etim Ekpo 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 27,553 buildings with a modelled result out of 27,592 in Etim Ekpo. 22,552 clear a positive NPV.

Payback

Under 3 years9,707 (35%)

Under 5 years18,731 (68%)

Under 7 years22,504 (82%)

Under 10 years24,134 (88%)

Return (IRR)

Above 10%23,626 (86%)

Above 15%22,552 (82%)

Above 20%20,092 (73%)

Above 25%9,800 (36%)

CO₂ avoided

32.4 kt/yr

Fuel avoided

9.9 million litres/yr

Energy unlocked

13.8 GWh/yr

Demand that is suppressed today

People served

187k

What hardware costs right now

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

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 Etim Ekpo

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
E	20,412	7,325	₦14bn	₦13.4bn	23%	4.6 yr
D	7,174	2,374	₦4.81bn	₦4.77bn	23%	4.6 yr
C	6	0	₦1.4m	₦1.4m	23%	4.6 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	26,579	8,795	₦14.2bn	₦13.9bn	23%	4.6 yr
Worship	662	584	₦995m	₦995m	59%	1.9 yr
Commercial General	190	172	₦1.2bn	₦1.2bn	57%	1.9 yr
Anchor	140	130	₦2.3bn	₦2.03bn	79%	1.4 yr
Industrial	21	18	₦68.4m	₦68.1m	69%	1.6 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	10,219	3,556	₦6.98bn	₦6.94bn	23%	4.6 yr
50 100m2	7,127	2,343	₦1.25bn	₦1.17bn	23%	4.6 yr
Under 30m2	3,999	1,370	₦153m	₦153m	7%	13.9 yr
30 50m2	3,700	1,238	₦256m	₦256m	13%	7.9 yr
250 1000m2	2,535	1,182	₦8.78bn	₦8.58bn	25%	4.4 yr
Over 1000m2	12	10	₦1.34bn	₦1.1bn	69%	1.6 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban	14,322	4,202	₦8.54bn	₦8.26bn	23%	4.6 yr
Dense Urban	9,873	4,847	₦8.61bn	₦8.36bn	25%	4.6 yr
Unclassified	3,397	650	₦1.62bn	₦1.58bn	23%	4.6 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential Small	10,669	3,609	₦1.85bn	₦1.77bn	23%	4.6 yr
Residential	10,166	3,544	₦12.2bn	₦12bn	23%	4.6 yr
Shed	5,744	1,642	₦174m	₦174m	9%	12.9 yr
Institutional	337	297	₦2.1bn	₦2.1bn	57%	1.9 yr
Worship Center	260	232	₦173m	₦173m	61%	1.6 yr
Place Of Worship	177	159	₦124m	₦124m	61%	1.6 yr
Educational Facility	72	67	₦423m	₦423m	81%	1.4 yr
Unknown	49	43	₦110m	₦110m	57%	1.9 yr
School	36	33	₦119m	₦119m	81%	1.4 yr
Market	23	19	₦16.2m	₦16.2m	63%	1.6 yr
Industrial Site	21	18	₦68.4m	₦68.1m	69%	1.6 yr
Healthcare Facility	18	17	₦755m	₦717m	53%	1.9 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	27,592	9,699	₦18.8bn	₦18.2bn

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	27,424	9,544	₦16.3bn	₦16bn	23%	4.6 yr
Enterprise	161	148	₦2.37bn	₦2.1bn	77%	1.4 yr
SME High	7	7	₦78.6m	₦78.6m	65%	1.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
3.0	10,049	3,968	₦15.5bn	₦15.1bn
2.0	9,912	3,429	₦2.79bn	₦2.71bn
0.0	5,755	1,652	₦175m	₦175m
1.0	1,869	643	₦183m	₦183m
4.0	7	7	₦78.6m	₦78.6m