Jigawa State

Rooftop solar in Taura, Jigawa: what the roofs are worth

Taura has 96,137 buildings with a viable rooftop and 754 MWp of roof capacity. 8% run a generator, and together they spend ₦27.7bn a year on energy.

Viable buildings

96,137

Usable roof area

3.4 km²

754 MWp roof capacity

Energy spend

₦27.7bn/yr

23.6 GWh/yr burned on generators

Median payback

5.4 yr

Median IRR 19% (cash saved)

The savings bracket for Taura

Approach B

Cash saved

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

Current energy spend₦27.7bn/yr

Year-one cash saved₦25.1bn

Lifetime cash saved₦1.28tn

NPV₦194bn

Median IRR19%

Median payback5.4 yr

Unlocked energy14.6 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity84.3 MWp

Capex₦90.4bn

Year-one energy value₦86.5bn

Lifetime energy value₦4.06tn

NPV₦694bn

Median IRR101%

Median payback1.1 yr

Three ways to size Taura'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: 84.3 MWp
Capital cost: ₦90.4bn
Year 1 savings: ₦86.5bn/yr
NPV: ₦694bn
Median IRR: 101%
Median payback: 1.1 yr

The odds a rooftop in Taura pays back quickly

Of the 95,212 buildings in Taura with a modelled payback, 42.7% pay back inside five years and 8.4% inside three.

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How much of Taura's demand actually gets met

Buildings in Taura consume 58.6 GWh/yr but want 73.1 GWh/yr. The 20% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

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Electricity billing bands in Taura

Loading band economics…

How many rooftops in Taura 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 95,212 buildings with a modelled result out of 96,137 in Taura. 55,730 clear a positive NPV.

Payback

Under 3 years7,958 (8%)

Under 5 years40,682 (43%)

Under 7 years55,798 (59%)

Under 10 years65,992 (69%)

Return (IRR)

Above 10%62,955 (65%)

Above 15%55,730 (58%)

Above 20%46,486 (48%)

Above 25%30,638 (32%)

CO₂ avoided

44 kt/yr

Fuel avoided

10.7 million litres/yr

Energy unlocked

14.6 GWh/yr

Demand that is suppressed today

People served

219k

What hardware costs right now

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

Solar panels

₦250

₦/W

Inverters

₦127,419

₦/kVA

Batteries

₦177,500

₦/kWh

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Building mix in Taura

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
E	25,705	470	₦3.44bn	₦3bn	11%	8.4 yr
D	25,291	1,322	₦3.6bn	₦3.57bn	17%	5.9 yr
C	23,417	1,290	₦4.01bn	₦3.33bn	11%	8.4 yr
A	14,273	2,741	₦9.06bn	₦8.34bn	27%	3.9 yr
B	7,451	2,101	₦7.58bn	₦6.82bn	29%	3.9 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	95,677	7,559	₦15bn	₦14.9bn	19%	5.6 yr
Anchor	235	187	₦10.9bn	₦8.44bn	67%	1.6 yr
Commercial General	97	83	₦1.41bn	₦1.4bn	57%	1.9 yr
Productive Use	40	28	₦10.8m	₦10.8m	69%	1.6 yr
Worship	33	22	₦12.9m	₦12.9m	41%	2.6 yr
Commercial Retail	21	21	₦17.5m	₦17.5m	59%	1.9 yr
Industrial	20	10	₦316m	₦291m	41%	2.4 yr
Hospitality	12	12	₦14m	₦14m	69%	1.4 yr
Filling Station	2	2	₦586k	₦586k	71%	1.4 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Under 30m2	51,292	3,002	₦594m	₦594m	9%	13.4 yr
30 50m2	18,922	1,616	₦498m	₦498m	21%	5.1 yr
50 100m2	14,827	1,615	₦1.26bn	₦1.25bn	27%	3.9 yr
100 250m2	7,720	1,073	₦4.19bn	₦4.03bn	31%	3.4 yr
250 1000m2	2,997	479	₦7.57bn	₦7.55bn	31%	3.4 yr
Over 1000m2	379	139	₦13.6bn	₦11.1bn	33%	3.4 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Rural	34,521	1,576	₦3.83bn	₦3.25bn	19%	5.9 yr
Urban	26,794	3,343	₦10.2bn	₦9.22bn	21%	5.1 yr
Unclassified	18,227	304	₦2.16bn	₦2.02bn	5%	15.9 yr
Dense Urban	16,595	2,701	₦11.5bn	₦10.6bn	27%	4.1 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Shed	60,489	3,375	₦710m	₦710m	11%	9.4 yr
Residential Informal	18,430	2,713	₦7.51bn	₦7.49bn	29%	3.6 yr
Residential Small	10,909	1,073	₦853m	₦853m	21%	4.9 yr
Residential	5,849	398	₦5.97bn	₦5.81bn	31%	3.4 yr
Institutional	163	132	₦10.7bn	₦8.26bn	57%	1.9 yr
Educational Facility	89	76	₦150m	₦150m	79%	1.4 yr
Kiosk Shop	59	47	₦27.4m	₦27.4m	59%	1.9 yr
Healthcare Facility	26	17	₦207m	₦207m	43%	2.1 yr
Place Of Worship	26	17	₦10.3m	₦10.3m	41%	2.6 yr
Commercial Corridor	21	21	₦1.2bn	₦1.19bn	63%	1.6 yr
School	20	16	₦23.8m	₦23.8m	85%	1.1 yr
Industrial	19	9	₦309m	₦284m	41%	2.6 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	96,093	7,880	₦25.7bn	₦23.3bn
Industrial	44	44	₦1.95bn	₦1.8bn

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	95,875	7,710	₦15.5bn	₦15.3bn	19%	5.4 yr
Enterprise	237	189	₦11bn	₦8.56bn	67%	1.6 yr
SME High	25	25	₦1.2bn	₦1.19bn	63%	1.6 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
0.0	52,017	2,608	₦528m	₦528m
2.0	16,976	2,079	₦2.47bn	₦2.45bn
1.0	14,955	1,241	₦500m	₦500m
3.0	8,940	1,309	₦10.1bn	₦9.8bn
4.0	3,239	677	₦12.9bn	₦10.6bn
5.0	7	7	₦690m	₦683m
6.0	3	3	₦560m	₦535m