Introducing the 1kW Stirling Developer’s Kit
Seeking Potential Integrators
A new day for
Portable Stirling Power
The core of Sunpower technology is the Free-Piston Stirling Engine (FPSE) invented by Sunpower. The FPSE converts heat into electricity in a hermetically sealed vessel using the Stirling thermodynamic cycle. Sunpower uses patented gas bearing technology that prevents contact during operation, eliminating wear and the need for lubrication, which results in many years of maintenance-free, high-efficiency power generation. As a testament to this level of efficiency and reliability, NASA has been funding development and production of Sunpower’s FPSEs as a potential next generation power conversion system for deep space missions.
- Maintenance-free engine
REQUIRES NO MAINTENANCE OVER ITS LIFETIME
- 20 year design life for the engine
- Load following
SYSTEM MODULATES TO FOLLOW THE POWER DEMAND
- More efficient than thermoelectric
- More environmentally friendly than thermoelectric, gas or diesel
- Quiet operation
- Multi-fuel capability
CURRENTLY, THE 1 KW DEVELOPER’S KIT ALLOWS FOR PROPANE OR NATURAL GAS, BUT AS THE ENGINE ONLY REQUIRES HEAT, OTHER OPTIONS ARE DEVELOPMENT OPPORTUNITIES
- Remote Power
- Cathodic Protection
- Accessory Power Unit
- Off-Grid Back-Up Power
Current Development Status
The 1 kW Stirling engine component has successfully demonstrated that it is ready for commercial deployment. Sunpower is developing the engine controller and the balance of plant components to meet the requirements of various applications. The current 1 kW developer’s kit is a lab-based engineering unit to assist potential integrators and research groups in understanding the technology and developing future products based on the technology. It is not yet a product ready for sale to the end user.
What are we looking for?
Ideally, Sunpower is seeking potential partners with viable applications and an established sales and service base in the application’s market. Sunpower is working to identify the key specifications needed to deliver product to various markets, and would like to work directly with potential integrators to better understand the requirements.
1 kW Developer’s Kit Specifications
|Nominal Engine Power Output||1000 W|
|Voltage Output||390 – 450 V dc*|
|Propane Consumption @ 600 W Output||13 Liters/Day|
|Propane Consumption @ 1000 W Output||22 Liters/Day|
|Maximum Sustained Head Temperature||550 °C|
|Warranty – Engine||2 years|
|Warranty – Balance of Plant Components||None|
|Ambient Operational Environment||6 – 70 °C|
|Ambient Non-Operational Environment||-25 – 70 °C|
|Max. Sulphur Content of Fuel||30 mg/m3|
|Fuel||Propane or Natural Gas|
|System Efficiency||12% – 14%|
Data subject to change.
* Sunpower is in development of a 24V dc/dc converter