Ekiti State

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

Ekiti South-West has 23,176 buildings with a viable rooftop and 537 MWp of roof capacity. 26% run a generator, and together they spend ₦17.7bn a year on energy.

Viable buildings

23,176

Usable roof area

2.39 km²

537 MWp roof capacity

Energy spend

₦17.7bn/yr

13.4 GWh/yr burned on generators

Median payback

4.1 yr

Median IRR 25% (cash saved)

The savings bracket for Ekiti South-West

Approach B

Cash saved

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

Current energy spend₦17.7bn/yr

Year-one cash saved₦17.4bn

Lifetime cash saved₦946bn

NPV₦139bn

Median IRR25%

Median payback4.1 yr

Unlocked energy17.9 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity77.9 MWp

Capex₦82bn

Year-one energy value₦67.6bn

Lifetime energy value₦3.19tn

NPV₦532bn

Median IRR83%

Median payback1.4 yr

Three ways to size Ekiti South-West'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: 77.9 MWp
Capital cost: ₦82bn
Year 1 savings: ₦67.6bn/yr
NPV: ₦532bn
Median IRR: 83%
Median payback: 1.4 yr

The odds a rooftop in Ekiti South-West pays back quickly

Of the 22,938 buildings in Ekiti South-West with a modelled payback, 75.9% pay back inside five years and 26.0% inside three.

Create a free account

How much of Ekiti South-West's demand actually gets met

Buildings in Ekiti South-West consume 30.7 GWh/yr but want 48.6 GWh/yr. The 37% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

Create a free account

Electricity billing bands in Ekiti South-West

Loading band economics…

How many rooftops in Ekiti South-West 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 22,938 buildings with a modelled result out of 23,176 in Ekiti South-West. 20,141 clear a positive NPV.

Payback

Under 3 years5,972 (26%)

Under 5 years17,400 (76%)

Under 7 years20,129 (88%)

Under 10 years21,243 (93%)

Return (IRR)

Above 10%21,073 (91%)

Above 15%20,141 (87%)

Above 20%18,204 (79%)

Above 25%15,857 (68%)

CO₂ avoided

35.1 kt/yr

Fuel avoided

8.55 million litres/yr

Energy unlocked

17.9 GWh/yr

Demand that is suppressed today

People served

216k

What hardware costs right now

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

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 Ekiti South-West

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
D	15,804	4,889	₦12.9bn	₦12.9bn	27%	4.1 yr
E	3,893	710	₦4.01bn	₦3.71bn	25%	4.4 yr
C	3,479	427	₦776m	₦765m	25%	4.4 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	22,616	5,681	₦15.9bn	₦15.6bn	25%	4.1 yr
Anchor	257	163	₦1.21bn	₦1.2bn	51%	2.1 yr
Commercial General	174	113	₦436m	₦436m	41%	2.6 yr
Industrial	65	44	₦79.2m	₦79.1m	53%	2.1 yr
Worship	48	12	₦12.8m	₦12.8m	33%	3.4 yr
Filling Station	7	6	₦8.92m	₦8.92m	51%	2.1 yr
Hospitality	6	6	₦22.6m	₦22.6m	43%	2.4 yr
Mall Retail	2	0	₦745k	₦745k	33%	3.1 yr
Commercial Retail	1	1	₦372k	₦372k	53%	2.1 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	9,383	2,457	₦8.37bn	₦8.23bn	27%	4.1 yr
Under 30m2	5,012	1,287	₦179m	₦178m	17%	6.1 yr
50 100m2	3,843	757	₦626m	₦626m	25%	4.4 yr
30 50m2	2,515	617	₦180m	₦180m	23%	4.9 yr
250 1000m2	2,403	896	₦7.57bn	₦7.4bn	27%	4.1 yr
Over 1000m2	20	12	₦755m	₦744m	61%	1.6 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Dense Urban	9,155	2,650	₦6.99bn	₦6.99bn	25%	4.1 yr
Urban Centre	9,079	2,528	₦6.56bn	₦6.55bn	25%	4.1 yr
Urban	1,938	437	₦2.1bn	₦2.1bn	27%	4.1 yr
Unclassified	1,810	374	₦1.89bn	₦1.59bn	25%	4.4 yr
Rural	1,194	37	₦139m	₦139m	25%	4.4 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential Formal	9,928	1,121	₦1.59bn	₦1.59bn	25%	4.4 yr
Residential	5,800	2,276	₦13.2bn	₦12.9bn	27%	4.1 yr
Residential Small	4,186	1,477	₦1.06bn	₦1.06bn	25%	4.1 yr
Shed	2,690	806	₦91.2m	₦91.2m	17%	6.1 yr
Institutional	183	114	₦549m	₦549m	41%	2.6 yr
Educational Facility	96	65	₦219m	₦219m	59%	1.9 yr
School	86	55	₦80.2m	₦80.2m	57%	1.9 yr
Healthcare Facility	36	21	₦533m	₦522m	41%	2.6 yr
Clinic	32	18	₦200m	₦199m	35%	2.6 yr
Industrial Site	29	18	₦33.8m	₦33.7m	47%	2.1 yr
Unknown	20	13	₦36.1m	₦36.1m	39%	2.9 yr
Worship Center	17	4	₦1.3m	₦1.3m	33%	3.4 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	23,176	6,026	₦17.7bn	₦17.4bn

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	22,837	5,805	₦16.3bn	₦16bn	25%	4.1 yr
Enterprise	322	207	₦1.29bn	₦1.28bn	51%	2.1 yr
SME High	17	14	₦58.1m	₦58.1m	51%	2.1 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
3.0	7,797	2,713	₦14.1bn	₦13.9bn
4.0	7,516	876	₦1.87bn	₦1.87bn
2.0	3,915	1,254	₦1.51bn	₦1.39bn
0.0	2,692	806	₦91.2m	₦91.2m
1.0	1,254	375	₦108m	₦108m
5.0	2	2	₦26.9m	₦26.9m