Mobius Labs 2
Explore our case study on a commercial Solar PV Installation in Hemel Hempstead. Discover how 60 Trina Vertex S+ panels and Growatt hybrid technology deliver 23,112 kWh annually.
Jan 17, 2025
5.5
yrs
60
6
27
kW
Overview
Location: Hemel Hempstead, Hertfordshire
Date of Installation: January 2025
Type: Commercial
Roof Layout: South-west
System Size: 27 kWp
Installation Process
Timeline: The installation was completed within 1 week, with no disruption to customer operations.
Performance and Financial Projections
Estimated Annual Energy Generation: 23,112 kWh
ROI Duration: 5.5 years (based on a 4% discount rate and £30,988.11 total installation cost).
Lifetime ROI:
Total Expected Generation Over 25 Years: 543,064 kWh
Net Present Value: £64,080.18
Annual Income and Savings Breakdown:
Total Export Payments: £20,973
Electricity Savings: £125,284
25-Year Accumulated Cash Flow:
Positive cash flow begins in Year 5.5.
Cumulative benefits over 25 years: £88,871.
Financial Route: Purchased outright.
Environmental Impact
Reduction in Reliance on National Grid: Significant, with an annual generation of 434,451 kWh consumed on-site.
Annual Carbon Offset: Lifetime Carbon Offset (25 Years): 126,536 kg of CO₂ (or 126.54 tonnes). That is equivalent to planting 5,752 trees over 25 years.
Frequently Asked Questions (FAQs)
How much shading affects the system?
The site has a shading factor (SF) of 1.00, indicating minimal shading.
What is the degradation rate?
Panels degrade at 0.5% annually, affecting performance slightly over time.
Installed and commissioned by
Mobius Labs
System overview
View the hardware that we installed for this customer.
60
solar panels
6
batteries
Full list of hardware installed
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Case study produced by
Heidi Drewett
Marketing Manager
, Chiltern Solar
Heidi Drewett serves as the Marketing Manager at Agrivert, where she oversees all marketing activities, including the Chiltern Solar division.
Other contributors
Team members that contributed to this item
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