Akwa Ibom State

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

Ikot Ekpene has 65,676 buildings with a viable rooftop and 1.61 GWp of roof capacity. 23% run a generator, and together they spend ₦15.7bn a year on energy.

Viable buildings

65,676

Usable roof area

7.14 km²

1.61 GWp roof capacity

Energy spend

₦15.7bn/yr

11.4 GWh/yr burned on generators

Median payback

4.6 yr

Median IRR 23% (cash saved)

The savings bracket for Ikot Ekpene

Approach B

Cash saved

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

Current energy spend₦15.7bn/yr

Year-one cash saved₦15.6bn

Lifetime cash saved₦889bn

NPV₦123bn

Median IRR23%

Median payback4.6 yr

Unlocked energy24.5 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity116 MWp

Capex₦112bn

Year-one energy value₦80.1bn

Lifetime energy value₦3.79tn

NPV₦616bn

Median IRR79%

Median payback1.4 yr

Three ways to size Ikot Ekpene'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: 116 MWp
Capital cost: ₦112bn
Year 1 savings: ₦80.1bn/yr
NPV: ₦616bn
Median IRR: 79%
Median payback: 1.4 yr

The odds a rooftop in Ikot Ekpene pays back quickly

Of the 64,746 buildings in Ikot Ekpene with a modelled payback, 57.1% pay back inside five years and 18.7% inside three.

Create a free account

How much of Ikot Ekpene's demand actually gets met

Buildings in Ikot Ekpene consume 35.9 GWh/yr but want 60.4 GWh/yr. The 41% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

Create a free account

Electricity billing bands in Ikot Ekpene

Loading band economics…

How many rooftops in Ikot Ekpene 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 64,746 buildings with a modelled result out of 65,676 in Ikot Ekpene. 49,723 clear a positive NPV.

Payback

Under 3 years12,106 (19%)

Under 5 years36,995 (57%)

Under 7 years49,562 (77%)

Under 10 years56,610 (87%)

Return (IRR)

Above 10%55,523 (85%)

Above 15%49,723 (76%)

Above 20%40,441 (62%)

Above 25%16,317 (25%)

CO₂ avoided

35.5 kt/yr

Fuel avoided

6.01 million litres/yr

Energy unlocked

24.5 GWh/yr

Demand that is suppressed today

People served

178k

What hardware costs right now

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

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 Ekpene

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
D	24,125	5,834	₦6.13bn	₦6.04bn	23%	4.6 yr
C	22,279	5,439	₦3.99bn	₦3.99bn	23%	4.6 yr
E	13,397	3,069	₦4.28bn	₦4.28bn	23%	4.6 yr
B	5,875	621	₦1.26bn	₦1.26bn	21%	5.1 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	62,796	13,940	₦9.55bn	₦9.45bn	23%	4.6 yr
Commercial General	1,264	291	₦2.25bn	₦2.25bn	33%	3.1 yr
Commercial Retail	568	64	₦51.9m	₦51.9m	31%	3.4 yr
Worship	568	394	₦719m	₦719m	51%	2.1 yr
Anchor	380	227	₦2.88bn	₦2.88bn	45%	2.4 yr
Industrial	65	41	₦114m	₦114m	61%	1.6 yr
Hospitality	24	3	₦82.5m	₦82.5m	33%	3.4 yr
Filling Station	6	2	₦2.38m	₦2.38m	31%	3.4 yr
Mall Retail	3	0	₦1.83m	₦1.83m	33%	3.1 yr
Productive Use	2	1	₦1.38m	₦1.38m	33%	2.1 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	22,993	5,137	₦4.83bn	₦4.83bn	25%	4.6 yr
Under 30m2	13,134	2,898	₦227m	₦227m	9%	9.6 yr
50 100m2	12,906	2,789	₦696m	₦695m	19%	5.6 yr
250 1000m2	8,473	2,302	₦7.72bn	₦7.62bn	25%	4.4 yr
30 50m2	8,067	1,793	₦232m	₦232m	15%	7.1 yr
Over 1000m2	103	44	₦1.95bn	₦1.95bn	31%	3.4 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban Centre	57,303	12,999	₦12.5bn	₦12.4bn	23%	4.6 yr
Urban	5,124	1,238	₦1.99bn	₦1.99bn	23%	4.6 yr
Unclassified	2,041	331	₦704m	₦704m	19%	5.6 yr
Dense Urban	1,208	395	₦467m	₦467m	23%	4.6 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	15,324	4,133	₦7.09bn	₦6.99bn	25%	4.6 yr
Residential Formal	14,993	2,216	₦1.02bn	₦1.02bn	23%	4.9 yr
Residential Small	14,029	3,833	₦790m	₦790m	19%	5.6 yr
Shed	9,963	2,228	₦200m	₦200m	11%	9.1 yr
Residential Informal	8,487	1,530	₦455m	₦455m	23%	4.6 yr
Commercial	571	75	₦919m	₦919m	33%	3.1 yr
Kiosk Shop	568	64	₦42.3m	₦42.3m	31%	3.4 yr
Institutional	371	246	₦2.29bn	₦2.29bn	43%	2.4 yr
Commercial Corridor	287	13	₦315m	₦315m	33%	3.1 yr
Worship Center	218	145	₦130m	₦130m	49%	2.1 yr
Place Of Worship	185	128	₦114m	₦114m	49%	2.1 yr
Unknown	152	55	₦318m	₦318m	29%	3.6 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	65,598	14,910	₦15.5bn	₦15.4bn
Commercial	77	53	₦186m	₦186m
Farmland	1	0	₦39k	₦39k

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	64,388	14,624	₦11.6bn	₦11.5bn	23%	4.6 yr
SME High	880	94	₦1.18bn	₦1.18bn	33%	3.1 yr
Enterprise	408	245	₦2.9bn	₦2.9bn	45%	2.4 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
3.0	20,429	5,150	₦10bn	₦9.93bn
2.0	19,528	4,786	₦1.56bn	₦1.56bn
4.0	11,753	1,794	₦2.5bn	₦2.5bn
0.0	9,954	2,229	₦200m	₦200m
1.0	3,213	919	₦86.5m	₦86.5m
5.0	633	64	₦736m	₦736m
6.0	166	21	₦554m	₦554m