Ekiti State

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

Ekiti West has 25,358 buildings with a viable rooftop and 570 MWp of roof capacity. 41% run a generator, and together they spend ₦52.8bn a year on energy.

Viable buildings

25,358

Usable roof area

2.54 km²

570 MWp roof capacity

Energy spend

₦52.8bn/yr

45 GWh/yr burned on generators

Median payback

4.1 yr

Median IRR 27% (cash saved)

The savings bracket for Ekiti West

Approach B

Cash saved

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

Current energy spend₦52.8bn/yr

Year-one cash saved₦49.9bn

Lifetime cash saved₦2.58tn

NPV₦403bn

Median IRR27%

Median payback4.1 yr

Unlocked energy28.7 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity128 MWp

Capex₦134bn

Year-one energy value₦119bn

Lifetime energy value₦5.61tn

NPV₦947bn

Median IRR89%

Median payback1.1 yr

Three ways to size Ekiti 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: 128 MWp
Capital cost: ₦134bn
Year 1 savings: ₦119bn/yr
NPV: ₦947bn
Median IRR: 89%
Median payback: 1.1 yr

The odds a rooftop in Ekiti West pays back quickly

Of the 25,067 buildings in Ekiti West with a modelled payback, 79.9% pay back inside five years and 41.7% inside three.

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How much of Ekiti West's demand actually gets met

Buildings in Ekiti West consume 69.2 GWh/yr but want 98 GWh/yr. The 29% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Ekiti West

Loading band economics…

How many rooftops in Ekiti 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 25,067 buildings with a modelled result out of 25,358 in Ekiti West. 21,819 clear a positive NPV.

Payback

Under 3 years10,452 (42%)

Under 5 years20,041 (80%)

Under 7 years21,810 (87%)

Under 10 years22,803 (91%)

Return (IRR)

Above 10%22,629 (89%)

Above 15%21,819 (86%)

Above 20%20,633 (81%)

Above 25%18,985 (75%)

CO₂ avoided

88 kt/yr

Fuel avoided

28.1 million litres/yr

Energy unlocked

28.7 GWh/yr

Demand that is suppressed today

People served

309k

What hardware costs right now

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

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
E	15,559	5,845	₦32.1bn	₦29.4bn	27%	4.1 yr
D	8,562	3,947	₦17.5bn	₦17.4bn	27%	4.1 yr
C	1,237	713	₦3.17bn	₦3.13bn	39%	2.6 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	24,582	9,887	₦48.6bn	₦45.9bn	27%	4.1 yr
Anchor	329	282	₦2.85bn	₦2.7bn	65%	1.6 yr
Commercial General	246	197	₦887m	₦887m	49%	2.1 yr
Industrial	102	68	₦280m	₦280m	61%	1.6 yr
Worship	85	61	₦109m	₦109m	55%	1.9 yr
Filling Station	9	7	₦23.1m	₦23.1m	57%	1.9 yr
Hospitality	4	3	₦23.2m	₦23.2m	53%	1.9 yr
Commercial Retail	1	0	₦11k	₦11k	25%	4.1 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
100 250m2	9,919	4,420	₦24bn	₦23.1bn	27%	4.1 yr
Under 30m2	5,810	2,130	₦1.02bn	₦471m	21%	4.9 yr
50 100m2	4,477	1,586	₦2.51bn	₦2.4bn	25%	4.1 yr
30 50m2	2,690	999	₦529m	₦515m	25%	4.4 yr
250 1000m2	2,439	1,355	₦22.9bn	₦21.7bn	47%	2.4 yr
Over 1000m2	23	15	₦1.84bn	₦1.78bn	59%	1.9 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Dense Urban	9,848	4,172	₦14.1bn	₦13.6bn	27%	4.1 yr
Urban Centre	7,586	3,578	₦15.5bn	₦15.5bn	27%	4.1 yr
Unclassified	3,403	855	₦6.72bn	₦6.36bn	25%	4.1 yr
Urban	3,296	1,786	₦15.8bn	₦13.9bn	59%	1.9 yr
Rural	1,225	114	₦596m	₦592m	23%	4.6 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential Formal	7,945	2,467	₦3.91bn	₦3.91bn	27%	4.1 yr
Residential	6,191	3,471	₦40.3bn	₦37.8bn	63%	1.6 yr
Residential Small	6,051	2,662	₦3.95bn	₦3.83bn	27%	4.1 yr
Shed	3,312	1,144	₦156m	₦156m	9%	13.1 yr
Residential Informal	1,043	132	₦247m	₦247m	27%	4.1 yr
Institutional	254	201	₦1.78bn	₦1.72bn	51%	2.1 yr
Educational Facility	123	107	₦468m	₦468m	75%	1.4 yr
School	110	94	₦287m	₦287m	71%	1.4 yr
Industrial Site	69	46	₦164m	₦164m	67%	1.6 yr
Healthcare Facility	43	35	₦711m	₦689m	47%	2.4 yr
Clinic	41	34	₦444m	₦373m	43%	2.4 yr
Unknown	32	21	₦50.1m	₦50.1m	37%	2.9 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	25,358	10,505	₦52.8bn	₦49.9bn

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	24,917	10,148	₦49.7bn	₦46.9bn	27%	4.1 yr
Enterprise	430	349	₦3.11bn	₦2.96bn	65%	1.6 yr
SME High	11	8	₦26.4m	₦26.4m	53%	1.9 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
3.0	7,672	4,228	₦39.7bn	₦38.4bn
4.0	6,288	1,996	₦4.51bn	₦4.5bn
2.0	5,542	2,397	₦7.13bn	₦6.24bn
0.0	3,338	1,151	₦158m	₦158m
1.0	2,514	730	₦1.23bn	₦635m
5.0	4	3	₦42m	₦42m