Katsina State

Rooftop solar in Batsari, Katsina: what the roofs are worth

Batsari has 114,784 buildings with a viable rooftop and 624 MWp of roof capacity. 7% run a generator, and together they spend ₦12.2bn a year on energy.

Viable buildings

114,784

Usable roof area

2.84 km²

624 MWp roof capacity

Energy spend

₦12.2bn/yr

9.95 GWh/yr burned on generators

Median payback

13.1 yr

Median IRR 9% (cash saved)

The savings bracket for Batsari

Approach B

Cash saved

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

Current energy spend₦12.2bn/yr

Year-one cash saved₦11.5bn

Lifetime cash saved₦623bn

NPV₦93.6bn

Median IRR9%

Median payback13.1 yr

Unlocked energy12.3 GWh/yr

Approach A

Energy value (upper bracket)

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

Installed capacity84.8 MWp

Capex₦92.6bn

Year-one energy value₦108bn

Lifetime energy value₦5.11tn

NPV₦894bn

Median IRR109%

Median payback0.9 yr

Three ways to size Batsari'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: 84.8 MWp
Capital cost: ₦92.6bn
Year 1 savings: ₦108bn/yr
NPV: ₦894bn
Median IRR: 109%
Median payback: 0.9 yr

The odds a rooftop in Batsari pays back quickly

Of the 114,356 buildings in Batsari with a modelled payback, 27.7% pay back inside five years and 7.4% inside three.

Create a free account

How much of Batsari's demand actually gets met

Buildings in Batsari consume 21.3 GWh/yr but want 33.6 GWh/yr. The 37% they cannot buy is suppressed demand — load that appears the moment supply is reliable.

Create a free account

Electricity billing bands in Batsari

Loading band economics…

How many rooftops in Batsari 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 114,356 buildings with a modelled result out of 114,784 in Batsari. 39,046 clear a positive NPV.

Payback

Under 3 years8,442 (7%)

Under 5 years31,708 (28%)

Under 7 years39,122 (34%)

Under 10 years56,303 (49%)

Return (IRR)

Above 10%50,314 (44%)

Above 15%39,046 (34%)

Above 20%33,565 (29%)

Above 25%28,401 (25%)

CO₂ avoided

23 kt/yr

Fuel avoided

5.45 million litres/yr

Energy unlocked

12.3 GWh/yr

Demand that is suppressed today

People served

361k

What hardware costs right now

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

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 Batsari

Electricity billing band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
D	42,006	4,074	₦5.84bn	₦5.24bn	9%	13.4 yr
E	36,248	2,198	₦2.61bn	₦2.56bn	9%	13.6 yr
C	25,691	1,452	₦2.32bn	₦2.3bn	9%	13.4 yr
B	10,839	684	₦1.39bn	₦1.39bn	19%	5.6 yr

Load profile

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Residential	113,763	7,551	₦10.1bn	₦9.42bn	9%	13.1 yr
Anchor	345	276	₦858m	₦830m	65%	1.6 yr
Commercial General	324	277	₦1.08bn	₦1.08bn	65%	1.6 yr
Commercial Retail	183	149	₦59.8m	₦59.8m	73%	1.4 yr
Worship	162	149	₦90.4m	₦90.4m	69%	1.6 yr
Industrial	7	6	₦7.82m	₦7.82m	75%	1.4 yr

Roof size band

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Under 30m2	65,336	3,791	₦543m	₦541m	7%	15.9 yr
30 50m2	27,469	2,139	₦1.09bn	₦1.09bn	11%	8.6 yr
50 100m2	17,374	1,642	₦4bn	₦3.79bn	31%	3.4 yr
100 250m2	4,135	707	₦4.21bn	₦3.78bn	31%	3.4 yr
250 1000m2	456	125	₦1.9bn	₦1.9bn	33%	3.4 yr
Over 1000m2	14	4	₦420m	₦394m	33%	3.4 yr

Settlement type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Urban	53,463	6,810	₦7.66bn	₦7.36bn	9%	12.9 yr
Unclassified	31,143	149	₦1.85bn	₦1.59bn	5%	16.1 yr
Dense Urban	19,191	1,234	₦2.19bn	₦2.09bn	19%	5.4 yr
Rural	10,987	215	₦453m	₦453m	9%	9.4 yr

Building type

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)	Median IRR	Median payback
Shed	76,050	4,112	₦531m	₦531m	7%	15.1 yr
Residential Small	21,551	2,697	₦4.79bn	₦4.58bn	31%	3.4 yr
Residential Formal	9,856	190	₦185m	₦185m	19%	5.4 yr
Residential	5,111	543	₦4.53bn	₦4.1bn	29%	3.9 yr
Residential Informal	1,179	0	₦21.4m	₦21.4m	23%	4.6 yr
Institutional	249	203	₦626m	₦600m	63%	1.6 yr
Kiosk Shop	183	149	₦59.8m	₦59.8m	73%	1.4 yr
Educational Facility	131	103	₦193m	₦193m	95%	1.1 yr
Healthcare Facility	83	69	₦241m	₦240m	61%	1.6 yr
School	76	57	₦60.1m	₦60.1m	91%	1.1 yr
Commercial	66	65	₦357m	₦357m	73%	1.4 yr
Commercial Corridor	61	57	₦411m	₦411m	71%	1.6 yr

Land use

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
(Unset)	114,682	8,408	₦12.2bn	₦11.5bn
Farmland	102	0	₦983k	₦983k

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	114,305	8,004	₦10.5bn	₦9.89bn	9%	13.1 yr
Enterprise	352	282	₦865m	₦838m	65%	1.6 yr
SME High	127	122	₦767m	₦767m	73%	1.4 yr

Demand tier

Segment	Buildings	With generator	Spend ₦/yr	Cash saved yr 1 (B)
0.0	76,071	4,130	₦533m	₦533m
2.0	13,454	1,865	₦3.8bn	₦3.61bn
3.0	8,925	1,232	₦5.82bn	₦5.37bn
1.0	8,243	973	₦1.43bn	₦1.41bn
4.0	8,091	208	₦570m	₦570m