Turnkey PV for $7/W DC or AC? [RE-wrenches]

[Joel Davidson]

March 2003 Photon International magazine reported $6 per watt or less
for a turnkey PV system in Germany. The April issue reports the results
of a survey of 87 German installers and 232 PV system packages. A
completely installed 2 kW system, including modules, inverter, mounting
hardware and wiring, costs on average $14,040 after a 16% value-added
tax. 70% of the turnkey systems cost $5.40 to $7.02 per watt.
Installation costs range between $0.255 to $1.80 per watt. The survey
only included up to 5 kW system because residential rooftop PV systems
rarely exceed this size in Germany.

Two questions:
1) Are these system ratings DC STC watts or AC watts?
2) If AC watts, how are AC watts calculated?

Thanks in advance for any feedback from wrenches in Europe.

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