Taraba State

Rooftop solar in Karim Lamido, Taraba: what the roofs are worth

Karim Lamido has 158,077 buildings with a viable rooftop and 605 MWp of roof capacity. 10% run a generator, and together they spend ₦14.4bn a year on energy.

Viable buildings

158,077

Usable roof area

2.77 km²

605 MWp roof capacity

Energy spend

₦14.4bn/yr

14.2 GWh/yr burned on generators

Median payback

16.4 yr

Median IRR 5% (cash saved)

The savings bracket for Karim Lamido

Approach B

Cash saved

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

Current energy spend₦14.4bn/yr

Year-one cash saved₦13.7bn

Lifetime cash saved₦706bn

NPV₦108bn

Median IRR5%

Median payback16.4 yr

Unlocked energy10.9 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity68.1 MWp

Capex₦74bn

Year-one energy value₦75.5bn

Lifetime energy value₦3.58tn

NPV₦614bn

Median IRR99%

Median payback1.1 yr

Three ways to size Karim Lamido'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: 68.1 MWp
Capital cost: ₦74bn
Year 1 savings: ₦75.5bn/yr
NPV: ₦614bn
Median IRR: 99%
Median payback: 1.1 yr

The odds a rooftop in Karim Lamido pays back quickly

Of the 155,876 buildings in Karim Lamido with a modelled payback, 16.2% pay back inside five years and 10.2% inside three.

Create a free account

How much of Karim Lamido's demand actually gets met

Buildings in Karim Lamido consume 21.2 GWh/yr but want 32.1 GWh/yr. The 34% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

Create a free account

Electricity billing bands in Karim Lamido

Loading band economics…

How many rooftops in Karim Lamido 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 155,876 buildings with a modelled result out of 158,077 in Karim Lamido. 29,600 clear a positive NPV.

Payback

Under 3 years15,876 (10%)

Under 5 years25,206 (16%)

Under 7 years29,621 (19%)

Under 10 years38,455 (25%)

Return (IRR)

Above 10%35,557 (22%)

Above 15%29,600 (19%)

Above 20%26,122 (17%)

Above 25%23,710 (15%)

CO₂ avoided

24.4 kt/yr

Fuel avoided

6.97 million litres/yr

Energy unlocked

10.9 GWh/yr

Demand that is suppressed today

People served

196k

What hardware costs right now

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

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 Karim Lamido

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
D	76,443	8,465	₦7.46bn	₦6.92bn	5%	16.4 yr
E	59,949	5,895	₦5.09bn	₦4.94bn	5%	16.6 yr
C	21,526	1,477	₦1.81bn	₦1.8bn	5%	16.4 yr
B	159	30	₦13.2m	₦13.2m	19%	5.6 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	154,622	12,459	₦9.75bn	₦9.26bn	5%	16.6 yr
Commercial Retail	1,396	1,395	₦164m	₦164m	59%	1.9 yr
Commercial General	1,194	1,177	₦1.04bn	₦1.04bn	57%	1.9 yr
Anchor	595	574	₦3.32bn	₦3.11bn	67%	1.6 yr
Worship	213	211	₦57.5m	₦57.5m	59%	1.9 yr
Industrial	54	48	₦37.6m	₦37.6m	67%	1.6 yr
Filling Station	2	2	₦1.19m	₦1.19m	61%	1.6 yr
Hospitality	1	1	₦565k	₦565k	65%	1.6 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Under 30m2	128,920	10,390	₦1.05bn	₦1.05bn	5%	17.1 yr
30 50m2	14,567	2,062	₦557m	₦557m	9%	9.6 yr
50 100m2	9,790	1,814	₦2.26bn	₦2.19bn	29%	3.9 yr
100 250m2	4,140	1,251	₦4.35bn	₦4.2bn	29%	3.9 yr
250 1000m2	645	337	₦3.89bn	₦3.62bn	57%	1.9 yr
Over 1000m2	15	13	₦2.26bn	₦2.05bn	81%	1.4 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Unclassified	107,416	7,860	₦8.09bn	₦7.43bn	5%	17.1 yr
Rural	26,664	3,676	₦2.46bn	₦2.42bn	7%	14.6 yr
Urban	19,075	3,362	₦3.4bn	₦3.39bn	7%	14.1 yr
Dense Urban	4,922	969	₦426m	₦426m	7%	9.6 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Shed	122,964	8,254	₦707m	₦707m	5%	17.1 yr
Residential	16,475	2,585	₦6.7bn	₦6.29bn	13%	7.6 yr
Residential Small	15,154	1,616	₦2.34bn	₦2.27bn	23%	4.4 yr
Kiosk Shop	1,396	1,395	₦164m	₦164m	59%	1.9 yr
Commercial Corridor	457	457	₦480m	₦480m	61%	1.6 yr
Institutional	428	412	₦2.13bn	₦2.13bn	57%	1.9 yr
Market	379	379	₦27.5m	₦27.5m	57%	1.9 yr
Educational Facility	198	190	₦315m	₦315m	85%	1.1 yr
Healthcare Facility	134	131	₦1.08bn	₦870m	53%	1.9 yr
School	121	113	₦110m	₦110m	83%	1.1 yr
Clinic	118	116	₦184m	₦183m	53%	1.9 yr
Worship Center	74	73	₦17.1m	₦17.1m	63%	1.6 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	157,892	15,829	₦14.2bn	₦13.5bn
Retail	97	0	₦282k	₦282k
Farmland	57	28	₦117m	₦117m
Industrial	19	0	₦67.5k	₦67.5k
Farmyard	12	10	₦49.1m	₦49.1m

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	156,960	14,778	₦10.5bn	₦9.99bn	5%	16.4 yr
Enterprise	649	622	₦3.36bn	₦3.15bn	67%	1.6 yr
SME High	468	467	₦530m	₦530m	61%	1.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
0.0	123,070	8,333	₦712m	₦712m
2.0	14,816	2,461	₦3.81bn	₦3.66bn
1.0	13,162	3,250	₦1.32bn	₦1.24bn
3.0	6,942	1,736	₦8.21bn	₦7.73bn
4.0	82	82	₦248m	₦248m
5.0	5	5	₦79.9m	₦79.9m