Imo State

Rooftop solar in Ezinihitte, Imo: what the roofs are worth

Ezinihitte has 48,850 buildings with a viable rooftop and 1.11 GWp of roof capacity. 49% run a generator, and together they spend ₦33.4bn a year on energy.

Viable buildings

48,850

Usable roof area

4.93 km²

1.11 GWp roof capacity

Energy spend

₦33.4bn/yr

29.8 GWh/yr burned on generators

Median payback

4.4 yr

Median IRR 25% (cash saved)

The savings bracket for Ezinihitte

Approach B

Cash saved

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

Current energy spend₦33.4bn/yr

Year-one cash saved₦33.4bn

Lifetime cash saved₦1.72tn

NPV₦273bn

Median IRR25%

Median payback4.4 yr

Unlocked energy26.9 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity119 MWp

Capex₦126bn

Year-one energy value₦112bn

Lifetime energy value₦5.35tn

NPV₦900bn

Median IRR97%

Median payback1.1 yr

Three ways to size Ezinihitte'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: 119 MWp
Capital cost: ₦126bn
Year 1 savings: ₦112bn/yr
NPV: ₦900bn
Median IRR: 97%
Median payback: 1.1 yr

The odds a rooftop in Ezinihitte pays back quickly

Of the 48,733 buildings in Ezinihitte with a modelled payback, 74.4% pay back inside five years and 48.8% inside three.

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How much of Ezinihitte's demand actually gets met

Buildings in Ezinihitte consume 41.5 GWh/yr but want 68.4 GWh/yr. The 39% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Ezinihitte

Loading band economics…

How many rooftops in Ezinihitte 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 48,733 buildings with a modelled result out of 48,850 in Ezinihitte. 41,559 clear a positive NPV.

Payback

Under 3 years23,794 (49%)

Under 5 years36,235 (74%)

Under 7 years41,521 (85%)

Under 10 years44,309 (91%)

Return (IRR)

Above 10%43,575 (89%)

Above 15%41,559 (85%)

Above 20%37,908 (78%)

Above 25%25,192 (52%)

CO₂ avoided

61.4 kt/yr

Fuel avoided

19.2 million litres/yr

Energy unlocked

26.9 GWh/yr

Demand that is suppressed today

People served

270k

What hardware costs right now

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

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 Ezinihitte

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
C	19,620	9,886	₦13.6bn	₦13.6bn	43%	2.4 yr
D	16,595	7,692	₦10.2bn	₦10.2bn	25%	4.4 yr
E	12,635	6,213	₦9.61bn	₦9.59bn	25%	4.4 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	48,129	23,169	₦29.8bn	₦29.8bn	25%	4.4 yr
Anchor	324	278	₦2.27bn	₦2.26bn	73%	1.4 yr
Commercial General	259	224	₦1.04bn	₦1.04bn	57%	1.9 yr
Worship	75	64	₦162m	₦162m	61%	1.6 yr
Industrial	55	48	₦145m	₦145m	67%	1.6 yr
Filling Station	8	8	₦19.1m	₦19.1m	63%	1.6 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	18,029	8,795	₦15.2bn	₦15.2bn	25%	4.4 yr
50 100m2	10,734	5,212	₦2.37bn	₦2.37bn	25%	4.4 yr
Under 30m2	8,572	4,135	₦370m	₦370m	17%	5.9 yr
30 50m2	6,401	3,039	₦512m	₦512m	23%	4.9 yr
250 1000m2	5,069	2,571	₦13.8bn	₦13.8bn	49%	2.1 yr
Over 1000m2	45	39	₦1.2bn	₦1.19bn	73%	1.4 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban Centre	43,928	21,499	₦28.8bn	₦28.8bn	25%	4.4 yr
Urban	2,645	1,385	₦3.49bn	₦3.49bn	55%	1.9 yr
Unclassified	2,277	907	₦1.17bn	₦1.17bn	25%	4.4 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential Small	18,095	8,930	₦4.04bn	₦4.04bn	25%	4.4 yr
Residential	17,487	8,826	₦25.1bn	₦25.1bn	49%	2.1 yr
Shed	10,644	5,206	₦471m	₦471m	19%	5.6 yr
Residential Informal	1,194	130	₦131m	₦131m	25%	4.6 yr
Residential Formal	565	55	₦37.3m	₦37.3m	23%	4.6 yr
Institutional	240	210	₦1.33bn	₦1.31bn	57%	1.9 yr
Apartment	126	19	₦9.98m	₦9.98m	25%	4.4 yr
Educational Facility	108	96	₦509m	₦509m	81%	1.4 yr
School	97	85	₦282m	₦282m	81%	1.4 yr
Healthcare Facility	55	44	₦745m	₦745m	53%	2.1 yr
Industrial Site	47	42	₦119m	₦119m	69%	1.6 yr
Clinic	47	37	₦268m	₦268m	51%	2.1 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	48,850	23,791	₦33.4bn	₦33.4bn

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	48,457	23,451	₦30.8bn	₦30.8bn	25%	4.4 yr
Enterprise	379	326	₦2.42bn	₦2.4bn	69%	1.6 yr
SME High	14	14	₦164m	₦164m	67%	1.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
3.0	30,769	15,577	₦31.5bn	₦31.5bn
0.0	10,644	5,200	₦469m	₦469m
2.0	5,937	2,677	₦1.04bn	₦1.04bn
4.0	1,052	179	₦328m	₦328m
1.0	446	156	₦25m	₦24.9m
5.0	2	2	₦65.4m	₦65.4m