Case Study 1: 500kW Rooftop Solar System – Commercial Office Building, Germany

Client: Real estate development company in Berlin, Germany
Project Requirements: Reduce electricity costs for a 10,000 sqm commercial office building, achieve sustainability targets
Solution: 500kW grid-tie rooftop solar system with 1250 x 400W monocrystalline panels, 500kW central inverter, remote monitoring system

Results:
· Annual electricity generation: 525,000 kWh
· Annual cost savings: €85,000
· Carbon emissions reduction: 370 tons per year
· Payback period: 5.2 years

Client Feedback: “Siyunjo provided excellent support throughout the project, from design to commissioning. The system has been performing above expectations, helping us meet our sustainability goals while significantly reducing our operating costs.”

Case Study 2: 1MWh Energy Storage System – Manufacturing Facility, Australia

Client: Food processing plant in Melbourne, Australia
Project Requirements: Reduce peak demand charges, provide backup power during frequent grid outages
Solution: 1MWh lithium iron phosphate battery energy storage system, 500kW PCS, integrated with existing 300kW solar system

Results:
· Peak demand charges reduced by 40%
· Provides 8 hours of backup power for critical operations during outages
· Annual cost savings: AUD 180,000
· Payback period: 3.8 years

Client Feedback: “The energy storage system from Siyunjo has been a game-changer for our business. We no longer suffer production losses from grid outages, and our electricity costs have dropped significantly. The team provided excellent support during installation and commissioning.”

Case Study 3: Off-Grid Wind-Solar Hybrid System – Remote Village, Kenya

Client: Non-governmental organization working on rural electrification
Project Requirements: Provide reliable electricity to a remote village of 500 households with no grid access
Solution: 50kW solar array, 2 x 10kW wind turbines, 200kWh battery storage system, 100kW inverter, distribution network for the village

Results:
· 24/7 electricity supply for 500 households, a school, and a health clinic
· Enabled the use of electric lighting, refrigeration for medicine, and small business operations
· Improved quality of life and economic opportunities for the village

Client Feedback: “Siyunjo’s off-grid solution has transformed this village. The system has been operating reliably for over 2 years, even in harsh weather conditions. The team’s expertise in designing systems for remote locations was invaluable to the project’s success.”

Case Study 4: 1MW/2MWh Solar+Storage Microgrid – Island Resort, Maldives

Client: Luxury resort operator in the Maldives
Project Requirements: Replace expensive diesel generation with renewable energy, reduce operating costs, achieve sustainability targets
Solution: 1MW solar PV array, 2MWh lithium-ion battery storage system, 1.2MW hybrid inverter, integrated with existing diesel generators

Results:
· Diesel consumption reduced by 75%
· Annual cost savings: USD 450,000
· Carbon emissions reduction: 1,200 tons per year
· Payback period: 4.5 years

Client Feedback: “The microgrid system from Siyunjo has allowed us to significantly reduce our operating costs while enhancing our sustainability credentials, which is very important to our guests. The system has been operating flawlessly since commissioning.”.

Other Cases:

5MW Commercial Rooftop Solar + 2MWh Storage, Germany: A German manufacturing company wanted to reduce energy costs and achieve carbon neutrality. We supplied 5MW of bifacial solar panels, 2MWh of rack-mounted LiFePO4 batteries, and 10 EV chargers. Result: 5,500 MWh annual solar generation, 40% reduction in grid electricity purchases, ROI achieved in 4.5 years.

500kW Off-Grid Solar+Storage + Wind Hybrid, Remote Island, Indonesia: A remote island community needed 24/7 renewable energy to replace diesel generators. We designed and supplied a hybrid system with 500kW solar PV, 200kW wind turbine, 1MWh battery storage, and microgrid controller. Result: 95% reduction in diesel consumption, 24/7 renewable electricity for 2,000 households.

50 EV Charger Installation, Shopping Mall, California: A shopping mall wanted to attract EV-driving customers with convenient charging. We supplied and supervised installation of 50 Level 2 AC chargers and 4 DC fast chargers with cloud-based management platform. Result: 35% increase in customer dwell time, new revenue stream from charging fees.

200kW Solar + 400kWh Storage, Agricultural Farm, Australia: A large agricultural operation needed to power irrigation pumps and cold storage. We designed a solar-plus-storage system with 200kW ground-mount solar and 400kWh battery. Result: 60% reduction in electricity costs, reliable power for critical irrigation during grid outages.