Plateau State

Rooftop solar in Mikang, Plateau: what the roofs are worth

Mikang has 63,666 buildings with a viable rooftop and 278 MWp of roof capacity. 7% run a generator, and together they spend ₦6.18bn a year on energy.

Viable buildings

63,666

Usable roof area

1.23 km²

278 MWp roof capacity

Energy spend

₦6.18bn/yr

5.89 GWh/yr burned on generators

Median payback

18.6 yr

Median IRR 3% (cash saved)

The savings bracket for Mikang

Approach B

Cash saved

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

Current energy spend₦6.18bn/yr

Year-one cash saved₦6.16bn

Lifetime cash saved₦325bn

NPV₦49.9bn

Median IRR3%

Median payback18.6 yr

Unlocked energy5.73 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity34.9 MWp

Capex₦37.7bn

Year-one energy value₦39.1bn

Lifetime energy value₦1.85tn

NPV₦319bn

Median IRR93%

Median payback1.1 yr

Three ways to size Mikang'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: 34.9 MWp
Capital cost: ₦37.7bn
Year 1 savings: ₦39.1bn/yr
NPV: ₦319bn
Median IRR: 93%
Median payback: 1.1 yr

The odds a rooftop in Mikang pays back quickly

Of the 62,916 buildings in Mikang with a modelled payback, 17.6% pay back inside five years and 7.5% inside three.

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How much of Mikang's demand actually gets met

Buildings in Mikang consume 9.48 GWh/yr but want 15.2 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 Mikang

Loading band economics…

How many rooftops in Mikang 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 62,916 buildings with a modelled result out of 63,666 in Mikang. 12,990 clear a positive NPV.

Payback

Under 3 years4,708 (7%)

Under 5 years11,086 (18%)

Under 7 years13,001 (21%)

Under 10 years15,330 (24%)

Return (IRR)

Above 10%14,572 (23%)

Above 15%12,990 (20%)

Above 20%11,607 (18%)

Above 25%10,152 (16%)

CO₂ avoided

11.4 kt/yr

Fuel avoided

3.1 million litres/yr

Energy unlocked

5.73 GWh/yr

Demand that is suppressed today

People served

123k

What hardware costs right now

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

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 Mikang

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
C	28,536	1,918	₦1.94bn	₦1.94bn	5%	18.1 yr
D	20,853	1,644	₦3.04bn	₦3.02bn	3%	18.9 yr
E	14,277	1,075	₦1.2bn	₦1.19bn	3%	19.4 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	62,019	3,649	₦4.32bn	₦4.31bn	3%	18.9 yr
Commercial Retail	579	373	₦54.1m	₦54.1m	63%	1.6 yr
Commercial General	485	233	₦534m	₦534m	35%	3.1 yr
Anchor	269	213	₦1.15bn	₦1.15bn	67%	1.6 yr
Worship	239	138	₦71.2m	₦71.2m	55%	1.9 yr
Industrial	72	28	₦35.6m	₦35.5m	37%	2.9 yr
Filling Station	3	3	₦3.63m	₦3.63m	67%	1.6 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Under 30m2	48,794	1,999	₦237m	₦237m	3%	19.6 yr
30 50m2	6,023	686	₦209m	₦209m	9%	9.9 yr
50 100m2	5,909	947	₦785m	₦779m	29%	3.9 yr
100 250m2	2,481	771	₦1.91bn	₦1.9bn	29%	3.6 yr
250 1000m2	443	222	₦2.09bn	₦2.09bn	53%	1.9 yr
Over 1000m2	16	12	₦941m	₦941m	69%	1.1 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Unclassified	39,307	735	₦2.34bn	₦2.32bn	3%	19.9 yr
Urban	13,122	2,522	₦2.73bn	₦2.73bn	7%	14.9 yr
Dense Urban	7,215	1,005	₦794m	₦794m	13%	7.9 yr
Rural	4,022	375	₦318m	₦313m	5%	16.1 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Shed	50,044	1,771	₦187m	₦187m	3%	19.6 yr
Residential Small	6,915	883	₦786m	₦781m	29%	3.9 yr
Residential	4,063	809	₦3.29bn	₦3.27bn	27%	3.9 yr
Residential Informal	970	185	₦60.9m	₦60.9m	25%	4.4 yr
Kiosk Shop	579	373	₦54.1m	₦54.1m	63%	1.6 yr
Institutional	277	185	₦811m	₦811m	57%	1.9 yr
Market	152	10	₦3.62m	₦3.62m	27%	4.1 yr
Commercial Corridor	147	93	₦280m	₦280m	67%	1.6 yr
Educational Facility	102	75	₦170m	₦170m	87%	1.1 yr
Worship Center	86	48	₦16.3m	₦16.3m	57%	1.9 yr
Industrial Site	71	27	₦35.5m	₦35.5m	37%	2.9 yr
Place Of Worship	71	43	₦5.7m	₦5.7m	57%	1.9 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	63,666	4,637	₦6.18bn	₦6.16bn

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	63,169	4,294	₦4.7bn	₦4.68bn	3%	18.9 yr
Enterprise	341	241	₦1.19bn	₦1.19bn	63%	1.6 yr
SME High	156	102	₦291m	₦291m	67%	1.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
0.0	50,151	1,812	₦192m	₦192m
1.0	5,984	1,023	₦599m	₦593m
2.0	4,923	985	₦1.63bn	₦1.61bn
3.0	2,462	750	₦3.53bn	₦3.53bn
4.0	143	64	₦159m	₦159m
5.0	3	3	₦68.9m	₦68.9m