Nevada Micro Wind Test Site - December 2011 
Some sort of event took out the processor on the Modbus Shunt Monitor. That is a hole blown in the plastic packaging.
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Some sort of event took out the processor on the Modbus Shunt Monitor. That is a hole blown in the plastic packaging.
Viewed: 2231 times.

New dump load. The six 0.75 ohm resistors on the right are the 24 volt 1.8 kW dump load. The 0.9 ohm resistors on the left are the clipper stop resistors.
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New dump load. The six 0.75 ohm resistors on the right are the 24 volt 1.8 kW dump load. The 0.9 ohm resistors on the left are the clipper stop resistors.
Viewed: 1939 times.

Resistor bank as it is being mounted to back of main enclosure.
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Resistor bank as it is being mounted to back of main enclosure.
Viewed: 1980 times.

Pieter Huebner of Bergey maintains a 5kW Bergey Excel. A 10kW Bergey Excel is in the foreground.
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Pieter Huebner of Bergey maintains a 5kW Bergey Excel. A 10kW Bergey Excel is in the foreground.
Viewed: 2176 times.

A view from just below the peak of the mountain.
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A view from just below the peak of the mountain.
Viewed: 1963 times.

View from just below the peak of the mountain.
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View from just below the peak of the mountain.
Viewed: 1942 times.

Dump load all installed. The fan sucks cold air through the eight vents on the side.
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Dump load all installed. The fan sucks cold air through the eight vents on the side.
Viewed: 1947 times.

December 9th, 2011.
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December 9th, 2011.
Viewed: 1974 times.

More wind turbines and weather sensors.
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More wind turbines and weather sensors.
Viewed: 1962 times.

More messy wiring. Gel buffered outdoor CAT5e cable becomes brittle below freezing. Was difficult to deal with.
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More messy wiring. Gel buffered outdoor CAT5e cable becomes brittle below freezing. Was difficult to deal with.
Viewed: 1868 times.

Dawn on December 10th, 2011.
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Dawn on December 10th, 2011.
Viewed: 1898 times.

Riding up the mountain on December 10th, 2011.
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Riding up the mountain on December 10th, 2011.
Viewed: 1884 times.

Dawn on December 10th, 2011.
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Dawn on December 10th, 2011.
Viewed: 1942 times.

Dawn on December 10th, 2011.
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Dawn on December 10th, 2011.
Viewed: 1960 times.

Newly added AS Richards wind vane.
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Newly added AS Richards wind vane.
Viewed: 1976 times.

Inside of the Midnite Classic. Lots of IO on this thing. Ethernet, USB, three RS-232 ports.
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Inside of the Midnite Classic. Lots of IO on this thing. Ethernet, USB, three RS-232 ports.
Viewed: 1916 times.

Classic taking 114 volts in from the turbine and putting out 30 volts to the battery. Initial guess at a power curve ... will be tweaked over Modbus later.
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Classic taking 114 volts in from the turbine and putting out 30 volts to the battery. Initial guess at a power curve ... will be tweaked over Modbus later.
Viewed: 1875 times.

Standard day on the mountain. 30 MPH winds and 25F.
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Standard day on the mountain. 30 MPH winds and 25F.
Viewed: 1823 times.

Thermal label printers don't work very well when it is cold outside.
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Thermal label printers don't work very well when it is cold outside.
Viewed: 1822 times.

24 volt turbine and AS Richards wind vane.
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24 volt turbine and AS Richards wind vane.
Viewed: 1850 times.

Experimental enclosure. The 24 volt turbine output can be switched to this enclosure. There is a Morningstar Tri-Star MPPT running wind tracking code. It charges the 12 volt battery to the right. The Tri-Star on the left acts as a dump load.
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Experimental enclosure. The 24 volt turbine output can be switched to this enclosure. There is a Morningstar Tri-Star MPPT running wind tracking code. It charges the 12 volt battery to the right. The Tri-Star on the left acts as a dump load.
Viewed: 1892 times.

Weather sensors and 24 volt turbine.
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Weather sensors and 24 volt turbine.
Viewed: 1878 times.

Cold.
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Cold.
Viewed: 1930 times.

Wires, wires everywhere.
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Wires, wires everywhere.
Viewed: 1866 times.

Sensor and power sources wiring inputs.
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Sensor and power sources wiring inputs.
Viewed: 1771 times.

Bank of Rectifier Stop Switches.
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Bank of Rectifier Stop Switches.
Viewed: 1907 times.

Midnite Clipper wind turbine speed control. Normally housed in an attractive metal case. There wasn't room for that in an enclosure, so it got shrunk and the resistors got moved outside.
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Midnite Clipper wind turbine speed control. Normally housed in an attractive metal case. There wasn't room for that in an enclosure, so it got shrunk and the resistors got moved outside.
Viewed: 1946 times.

Another view to the south.
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Another view to the south.
Viewed: 1927 times.

Interior view, looking south.
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Interior view, looking south.
Viewed: 1859 times.

It was too cold outside to do proper wire routing. So a lot of wires just got dropped in place. Unfortunately.
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It was too cold outside to do proper wire routing. So a lot of wires just got dropped in place. Unfortunately.
Viewed: 1898 times.

A view to the North.
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A view to the North.
Viewed: 1851 times.

More messy wiring.
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More messy wiring.
Viewed: 1978 times.

Stuff. Lots of stuff. Getting ready to close the box for this trip and head down the mountain.
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Stuff. Lots of stuff. Getting ready to close the box for this trip and head down the mountain.
Viewed: 1951 times.

View to the north.
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View to the north.
Viewed: 1888 times.

The revised serial setup. Previously there was a single Moxa UPort 1450 that provided all of the serial ports. Unfortunately, it sometimes crashes. There is now an APRS World "Arlo Watchdog" that will automatically switch the two primary RS-485 busses to a Moxa MGate Modbus / TCP/IP gateway in the event of a bus problem. Further to the right is an 8 port fast Ethernet switch with a four port APRS World "Passive POE Monitor". The Passive POE Monitor allows individual ports power to be turned on or off and for voltage and current to be measured. It also provides over current protection.
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The revised serial setup. Previously there was a single Moxa UPort 1450 that provided all of the serial ports. Unfortunately, it sometimes crashes. There is now an APRS World "Arlo Watchdog" that will automatically switch the two primary RS-485 busses to a Moxa MGate Modbus / TCP/IP gateway in the event of a bus problem. Further to the right is an 8 port fast Ethernet switch with a four port APRS World "Passive POE Monitor". The Passive POE Monitor allows individual ports power to be turned on or off and for voltage and current to be measured. It also provides over current protection.
Viewed: 1944 times.

Messily installed USB hub (external powered) and FTDI 4-port RS-232 card. Circuit breaker is over current protection for dump load fan.
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Messily installed USB hub (external powered) and FTDI 4-port RS-232 card. Circuit breaker is over current protection for dump load fan.
Viewed: 2099 times.

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