Benue State

Rooftop solar in Konshisha, Benue: what the roofs are worth

Konshisha has 192,413 buildings with a viable rooftop and 899 MWp of roof capacity. 5% run a generator, and together they spend ₦8.14bn a year on energy.

Viable buildings

192,413

Usable roof area

4.16 km²

899 MWp roof capacity

Energy spend

₦8.14bn/yr

7.39 GWh/yr burned on generators

Median payback

17.6 yr

Median IRR 5% (cash saved)

The savings bracket for Konshisha

Approach B

Cash saved

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

Current energy spend₦8.14bn/yr

Year-one cash saved₦7.97bn

Lifetime cash saved₦436bn

NPV₦58.1bn

Median IRR5%

Median payback17.6 yr

Unlocked energy11 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity94.4 MWp

Capex₦102bn

Year-one energy value₦94.8bn

Lifetime energy value₦4.52tn

NPV₦765bn

Median IRR89%

Median payback1.1 yr

Three ways to size Konshisha'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: 94.4 MWp
Capital cost: ₦102bn
Year 1 savings: ₦94.8bn/yr
NPV: ₦765bn
Median IRR: 89%
Median payback: 1.1 yr

The odds a rooftop in Konshisha pays back quickly

Of the 188,498 buildings in Konshisha with a modelled payback, 13.7% pay back inside five years and 5.5% inside three.

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How much of Konshisha's demand actually gets met

Buildings in Konshisha consume 15.8 GWh/yr but want 26.8 GWh/yr. The 41% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Konshisha

Loading band economics…

How many rooftops in Konshisha 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 188,498 buildings with a modelled result out of 192,413 in Konshisha. 29,625 clear a positive NPV.

Payback

Under 3 years10,289 (5%)

Under 5 years25,831 (14%)

Under 7 years29,610 (16%)

Under 10 years32,961 (17%)

Return (IRR)

Above 10%32,095 (17%)

Above 15%29,625 (15%)

Above 20%26,997 (14%)

Above 25%23,320 (12%)

CO₂ avoided

16.7 kt/yr

Fuel avoided

3.41 million litres/yr

Energy unlocked

11 GWh/yr

Demand that is suppressed today

People served

340k

What hardware costs right now

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

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 Konshisha

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
C	72,495	3,340	₦2.61bn	₦2.61bn	5%	17.6 yr
D	62,111	3,022	₦2.27bn	₦2.27bn	5%	17.9 yr
E	57,807	4,027	₦3.27bn	₦3.09bn	5%	17.6 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	188,732	6,797	₦5.06bn	₦4.94bn	5%	17.9 yr
Commercial Retail	1,563	1,510	₦136m	₦136m	55%	1.9 yr
Commercial General	1,351	1,334	₦1.6bn	₦1.6bn	59%	1.9 yr
Anchor	555	550	₦1.27bn	₦1.21bn	69%	1.6 yr
Worship	135	128	₦47.6m	₦47.6m	53%	1.9 yr
Industrial	77	70	₦36m	₦36m	59%	1.9 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Under 30m2	154,960	5,818	₦621m	₦621m	3%	18.4 yr
30 50m2	15,400	1,039	₦242m	₦242m	7%	14.6 yr
50 100m2	12,237	1,373	₦1.11bn	₦1.11bn	25%	4.1 yr
100 250m2	8,776	1,679	₦3.33bn	₦3.22bn	27%	4.1 yr
250 1000m2	1,019	467	₦2.43bn	₦2.43bn	27%	4.1 yr
Over 1000m2	21	13	₦410m	₦351m	59%	1.9 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban	96,389	7,750	₦5.68bn	₦5.63bn	5%	17.4 yr
Unclassified	74,572	1,103	₦1.56bn	₦1.45bn	3%	18.4 yr
Rural	11,532	901	₦408m	₦408m	5%	17.4 yr
Dense Urban	9,920	635	₦487m	₦487m	7%	14.9 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Shed	158,544	3,304	₦416m	₦416m	3%	18.4 yr
Residential Small	15,508	1,464	₦1.01bn	₦1.01bn	25%	4.1 yr
Residential	13,763	2,028	₦3.61bn	₦3.5bn	25%	4.1 yr
Kiosk Shop	1,563	1,510	₦136m	₦136m	55%	1.9 yr
Residential Informal	892	0	₦16.8m	₦16.8m	19%	5.6 yr
Commercial	461	454	₦618m	₦618m	61%	1.6 yr
Institutional	415	406	₦924m	₦865m	53%	1.9 yr
Market	352	351	₦48.2m	₦48.2m	59%	1.9 yr
Educational Facility	203	202	₦307m	₦307m	79%	1.4 yr
Commercial Corridor	161	161	₦359m	₦359m	65%	1.6 yr
School	126	126	₦161m	₦161m	79%	1.4 yr
Healthcare Facility	121	119	₦335m	₦335m	49%	2.1 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	192,207	10,389	₦8.14bn	₦7.97bn
Commercial	202	0	₦1.66m	₦1.66m
Orchard	4	0	₦140k	₦140k

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	191,168	9,160	₦5.86bn	₦5.74bn	5%	17.9 yr
Enterprise	624	615	₦1.3bn	₦1.25bn	65%	1.6 yr
SME High	621	614	₦979m	₦979m	63%	1.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
0.0	158,611	3,344	₦418m	₦418m
2.0	14,652	2,157	₦2.53bn	₦2.42bn
1.0	11,664	3,195	₦654m	₦650m
3.0	7,401	1,617	₦4.11bn	₦4.05bn
4.0	76	67	₦315m	₦315m
5.0	9	9	₦121m	₦121m