Ekiti State

Rooftop solar in Ado-Ekiti, Ekiti: what the roofs are worth

Ado-Ekiti has 159,156 buildings with a viable rooftop and 3.79 GWp of roof capacity. 19% run a generator, and together they spend ₦36.9bn a year on energy.

Viable buildings

159,156

Usable roof area

16.9 km²

3.79 GWp roof capacity

Energy spend

₦36.9bn/yr

24.1 GWh/yr burned on generators

Median payback

4.1 yr

Median IRR 25% (cash saved)

The savings bracket for Ado-Ekiti

Approach B

Cash saved

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

Current energy spend₦36.9bn/yr

Year-one cash saved₦36.8bn

Lifetime cash saved₦2.16tn

NPV₦287bn

Median IRR25%

Median payback4.1 yr

Unlocked energy59.5 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity221 MWp

Capex₦223bn

Year-one energy value₦148bn

Lifetime energy value₦7tn

NPV₦1.12tn

Median IRR69%

Median payback1.6 yr

Three ways to size Ado-Ekiti'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: 221 MWp
Capital cost: ₦223bn
Year 1 savings: ₦148bn/yr
NPV: ₦1.12tn
Median IRR: 69%
Median payback: 1.6 yr

The odds a rooftop in Ado-Ekiti pays back quickly

Of the 156,941 buildings in Ado-Ekiti with a modelled payback, 67.5% pay back inside five years and 16.4% inside three.

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How much of Ado-Ekiti's demand actually gets met

Buildings in Ado-Ekiti consume 97.1 GWh/yr but want 157 GWh/yr. The 38% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Ado-Ekiti

Loading band economics…

How many rooftops in Ado-Ekiti 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 156,941 buildings with a modelled result out of 159,156 in Ado-Ekiti. 132,349 clear a positive NPV.

Payback

Under 3 years25,722 (16%)

Under 5 years105,895 (67%)

Under 7 years132,242 (84%)

Under 10 years145,610 (93%)

Return (IRR)

Above 10%144,030 (90%)

Above 15%132,349 (83%)

Above 20%113,617 (71%)

Above 25%91,925 (58%)

CO₂ avoided

86.4 kt/yr

Fuel avoided

12.2 million litres/yr

Energy unlocked

59.5 GWh/yr

Demand that is suppressed today

People served

370k

What hardware costs right now

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

Solar panels

₦250

₦/W

Inverters

₦127,419

₦/kVA

Batteries

₦177,500

₦/kWh

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Building mix in Ado-Ekiti

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
C	84,329	14,614	₦18bn	₦18bn	25%	4.1 yr
B	45,705	10,944	₦12.3bn	₦12.3bn	25%	4.1 yr
D	20,030	3,696	₦5.06bn	₦5.06bn	25%	4.1 yr
A	6,061	223	₦687m	₦685m	21%	5.1 yr
E	3,031	383	₦836m	₦836m	25%	4.4 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	154,992	28,013	₦22.5bn	₦22.5bn	25%	4.1 yr
Commercial General	1,649	698	₦3.33bn	₦3.32bn	35%	3.1 yr
Anchor	1,273	540	₦8.29bn	₦8.23bn	43%	2.6 yr
Commercial Retail	350	166	₦55.8m	₦55.8m	33%	3.1 yr
Industrial	278	145	₦331m	₦330m	37%	2.9 yr
Worship	274	105	₦174m	₦174m	35%	3.1 yr
Hospitality	211	127	₦2.06bn	₦2.06bn	37%	2.9 yr
Filling Station	86	44	₦67.3m	₦67.3m	35%	3.1 yr
Mall Retail	23	10	₦33.2m	₦33.2m	35%	3.1 yr
Productive Use	18	12	₦40.5m	₦40.5m	37%	2.9 yr
Automotive	2	0	₦3.02m	₦3.02m	29%	3.4 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	62,524	10,836	₦12.3bn	₦12.3bn	27%	4.1 yr
Under 30m2	35,895	6,891	₦607m	₦605m	13%	7.1 yr
50 100m2	25,140	4,647	₦1.49bn	₦1.49bn	23%	4.6 yr
250 1000m2	17,855	3,967	₦14.7bn	₦14.6bn	27%	4.1 yr
30 50m2	17,482	3,436	₦576m	₦574m	19%	5.6 yr
Over 1000m2	260	83	₦7.31bn	₦7.26bn	27%	3.9 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban Centre	147,409	27,527	₦32.5bn	₦32.4bn	25%	4.1 yr
Urban	7,398	1,157	₦2.28bn	₦2.28bn	25%	4.1 yr
Unclassified	4,349	1,176	₦2.19bn	₦2.15bn	25%	4.1 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential Formal	66,666	11,238	₦6.44bn	₦6.44bn	25%	4.1 yr
Residential Informal	41,725	8,526	₦5.11bn	₦5.11bn	25%	4.1 yr
Residential	19,053	3,278	₦9.58bn	₦9.55bn	27%	4.1 yr
Residential Small	15,659	2,713	₦1.14bn	₦1.14bn	23%	4.6 yr
Shed	11,767	2,238	₦265m	₦265m	19%	5.6 yr
Institutional	780	346	₦5.75bn	₦5.72bn	31%	3.4 yr
Unknown	454	209	₦1.05bn	₦1.04bn	31%	3.4 yr
Educational Facility	413	171	₦358m	₦358m	43%	2.4 yr
School	379	180	₦948m	₦948m	43%	2.4 yr
Kiosk Shop	357	173	₦80m	₦80m	35%	3.1 yr
Commercial Corridor	347	152	₦1.07bn	₦1.07bn	37%	2.9 yr
Industrial Site	162	81	₦225m	₦224m	37%	2.9 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	159,106	29,860	₦36.9bn	₦36.8bn
Industrial	50	0	₦5.49m	₦5.49m

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	157,072	28,943	₦27bn	₦26.9bn	25%	4.1 yr
Enterprise	1,536	680	₦8.61bn	₦8.55bn	41%	2.6 yr
SME High	548	237	₦1.33bn	₦1.33bn	35%	3.1 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
4.0	51,902	8,884	₦13.1bn	₦13.1bn
3.0	47,952	8,664	₦18.4bn	₦18.3bn
2.0	38,553	7,682	₦2.72bn	₦2.72bn
0.0	11,703	2,242	₦267m	₦267m
1.0	8,750	2,294	₦176m	₦175m
5.0	250	92	₦1.98bn	₦1.97bn
6.0	46	2	₦283m	₦283m