Rogue MPT-3048 now available
For those who've been waiting, just a heads-up that the 3048 is now available for ordering on the Rogue website. http://www.roguepowertech.com/products/mpt3048.htm If you've visited the page rec...
Forum Discussion
Salvo wrote:
Got some questions/comments on the spec.
1. Spec is 97.5% efficiency at (17V/13.6V). What's the power level?
2. More important, what's the efficiency at 480W, 68V/13.6V?
3. From spec: typical operating power consumption is 0.98W. Max power consumption is 1.5W. That doesn't make sense. Max PV power is 480W. At 97.5% efficiency, you're dropping 12W into the charge controller.
Sal
1) 97.5% efficiency with a 17vin and 13.6vout is at ~70w input.
2) You're unlikely to see 480w in with a 13.6v output. At maximum output (30a) and at 68vin (92.8% efficiency), (13.6 * 30) / 0.928 = 440w. Unless you have 40w of losses in your wiring, you won't see 480w.
3) Power consumption is what the controller uses for powering its electronics, and does not consider losses from power conversion.
