Taraba State

Rooftop solar in Jalingo, Taraba: what the roofs are worth

Jalingo has 174,088 buildings with a viable rooftop and 2.09 GWp of roof capacity. 17% run a generator, and together they spend ₦37.3bn a year on energy.

Viable buildings

174,088

Usable roof area

9.36 km²

2.09 GWp roof capacity

Energy spend

₦37.3bn/yr

29.4 GWh/yr burned on generators

Median payback

5.6 yr

Median IRR 19% (cash saved)

The savings bracket for Jalingo

Approach B

Cash saved

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

Current energy spend₦37.3bn/yr

Year-one cash saved₦36.2bn

Lifetime cash saved₦1.99tn

NPV₦287bn

Median IRR19%

Median payback5.6 yr

Unlocked energy38.7 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity143 MWp

Capex₦142bn

Year-one energy value₦96.8bn

Lifetime energy value₦4.54tn

NPV₦733bn

Median IRR71%

Median payback1.4 yr

Three ways to size Jalingo'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: 143 MWp
Capital cost: ₦142bn
Year 1 savings: ₦96.8bn/yr
NPV: ₦733bn
Median IRR: 71%
Median payback: 1.4 yr

The odds a rooftop in Jalingo pays back quickly

Of the 165,807 buildings in Jalingo with a modelled payback, 42.7% pay back inside five years and 16.3% inside three.

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How much of Jalingo's demand actually gets met

Buildings in Jalingo consume 85.5 GWh/yr but want 124 GWh/yr. The 31% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Jalingo

Loading band economics…

How many rooftops in Jalingo 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 165,807 buildings with a modelled result out of 174,088 in Jalingo. 108,523 clear a positive NPV.

Payback

Under 3 years26,962 (16%)

Under 5 years70,848 (43%)

Under 7 years108,746 (66%)

Under 10 years137,004 (83%)

Return (IRR)

Above 10%133,444 (77%)

Above 15%108,523 (62%)

Above 20%78,377 (45%)

Above 25%59,118 (34%)

CO₂ avoided

73.3 kt/yr

Fuel avoided

13.7 million litres/yr

Energy unlocked

38.7 GWh/yr

Demand that is suppressed today

People served

199k

What hardware costs right now

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

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 Jalingo

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
A	79,834	17,401	₦22.7bn	₦21.9bn	23%	4.6 yr
B	79,250	9,707	₦12.1bn	₦11.8bn	17%	6.4 yr
C	7,740	1,451	₦1.49bn	₦1.49bn	15%	6.6 yr
E	3,661	642	₦564m	₦555m	5%	16.6 yr
D	3,603	673	₦532m	₦469m	5%	17.1 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	166,107	26,407	₦19bn	₦18.6bn	17%	5.9 yr
Commercial Retail	3,928	1,901	₦529m	₦529m	35%	3.1 yr
Commercial General	2,963	1,224	₦11.7bn	₦11.5bn	37%	2.9 yr
Anchor	802	255	₦5.42bn	₦5bn	45%	2.4 yr
Worship	129	31	₦87.6m	₦87.6m	35%	3.1 yr
Hospitality	63	20	₦347m	₦321m	37%	2.9 yr
Industrial	60	22	₦99.8m	₦98.8m	39%	2.6 yr
Filling Station	23	5	₦14.1m	₦14.1m	37%	2.9 yr
Mall Retail	8	4	₦17.2m	₦17.2m	37%	2.6 yr
Productive Use	5	5	₦4.57m	₦4.57m	43%	2.6 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Under 30m2	73,423	10,981	₦1.17bn	₦1.16bn	13%	7.6 yr
50 100m2	38,035	5,403	₦2.34bn	₦2.29bn	21%	5.4 yr
100 250m2	29,952	7,313	₦10.7bn	₦10.5bn	29%	3.9 yr
30 50m2	26,713	3,806	₦818m	₦751m	17%	6.1 yr
250 1000m2	5,727	2,230	₦13.7bn	₦13.4bn	29%	3.6 yr
Over 1000m2	238	141	₦8.64bn	₦8.12bn	45%	2.4 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban Centre	148,888	21,754	₦26.4bn	₦25.7bn	19%	5.6 yr
Urban	14,101	5,490	₦6.78bn	₦6.62bn	27%	3.9 yr
Unclassified	11,099	2,630	₦4.08bn	₦3.9bn	11%	8.9 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential Informal	78,649	8,646	₦3.73bn	₦3.68bn	17%	5.9 yr
Shed	48,885	8,383	₦855m	₦855m	17%	6.6 yr
Residential Small	15,952	5,038	₦1.97bn	₦1.9bn	27%	4.1 yr
Residential Formal	12,441	0	₦76.2m	₦76.2m	13%	7.1 yr
Residential	10,153	4,332	₦12.4bn	₦12.1bn	29%	3.6 yr
Kiosk Shop	3,926	1,903	₦530m	₦530m	35%	3.1 yr
Commercial	1,604	742	₦7.49bn	₦7.31bn	37%	2.9 yr
Commercial Corridor	833	321	₦3.07bn	₦3.04bn	37%	2.9 yr
Institutional	442	150	₦4.51bn	₦4.3bn	33%	3.4 yr
Educational Facility	242	86	₦439m	₦439m	47%	2.4 yr
School	235	74	₦214m	₦214m	45%	2.4 yr
Unknown	96	29	₦123m	₦123m	33%	3.4 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	174,088	29,874	₦37.3bn	₦36.2bn

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	170,723	28,517	₦21.1bn	₦20.6bn	19%	5.6 yr
SME High	2,509	1,084	₦10.7bn	₦10.5bn	37%	2.9 yr
Enterprise	856	273	₦5.52bn	₦5.1bn	45%	2.4 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
0.0	47,193	8,398	₦847m	₦847m
3.0	42,916	9,242	₦18.9bn	₦18.1bn
2.0	39,150	5,935	₦2.22bn	₦2.2bn
4.0	31,710	3,472	₦5.98bn	₦5.96bn
1.0	11,458	2,142	₦499m	₦437m
5.0	1,375	538	₦3.29bn	₦3.28bn
6.0	286	147	₦5.58bn	₦5.38bn