Honeywell Proprietary Honeywell.com  1 Customer Needs (Inverter Manufacturers and Solar Panel Installers) 1.PV solar panel manufacturers – not our focused customers Three technologies are competing for cost-leadership –Silicon-wafer-based photovoltaics –Thin-film PVs –Concentrated solar thermal power 2.Equipment/instrument manufacturers Improve the efficiency of power generation Maintain stable output of electricity vs. time and temperature Prevent voltage spikes 3.Solar panel installers Maximize efficiency of power generation by tracking the sun Prevent the panel from overheating - spikes in voltages above safe levels for their inverters when the panel temperatures get too high Identify the location of bad cells, shorts in wiring caused by corrosion Key Challenges –Harsh environment Solar Energy Company Needs and Challenges

Honeywell Proprietary Honeywell.com  2 Sensor and Switch Solutions for Solar

Honeywell Proprietary Honeywell.com  3 Customer Needs: (Wind turbine manufacturers and component suppliers) –Decrease cost of energy to improve ROI (6~8 cents/kWh vs. 5 cents for coal-fired plants) –Efficient turbines –Increase reliability of whole system –Increase service intervals for off-shore applications –Minimize downtime (e.g., GE - 15% in 2002 to 3% in 2007) –Reduce maintenance costs –Durable wind turbines Key Challenges –Reliable, continuous speed measurement of blades at low speed –Blade stress and premature fracture/failure –Condensation inside the blades –Harsh environments –Gearbox failure –Lightning –Vibration Wind Turbine Manufacturer Needs and Challenges

Honeywell Proprietary Honeywell.com  4 Sensor and Switch Solutions for Wind Energy

Honeywell Proprietary Honeywell.com  5 Momentary rope pull limit switch used to detect rotational twist GLS Limit Switches available with a wide variety of options including low energy for PLC interfacing. Contacts incorporate positive break contacts which ensure the contacts break even in the event of a welded contact. These types of switches can be used to detect the BLADE limit. They can also be applied to Rotor Lock maintenance applications. Low cost vibration detection is possible with this cat’s whisker switch – invert the switch, attach a suitable weight and it is possible to detect extreme vibration conditions that may otherwise damage the mechanism Blade Position Twist Detection Vibration in Nacelle Limit Switch Potential Applications Tower Man Lift A GLS limit switch can be used to detect floor positioning; GK key Safety switches on the lift gates doors Locked Rotor A GLS Switch can be used for maintenance lockout of the rotor