Kipp & Zonen Blog

PV Plant Performance Ratios during Design and Installation

[fa icon="calendar'] 4-jul-2017 16:31:21 / by Jan-Willem Sips posted in pv, performance ration, performance ratio, pv performance

[fa icon="comment"] 0 Comments

I used to train installers of (mostly residential) PV systems, and tell them that half of the quality of a PV system is in good materials and design, and the other half is in proper installation. For utility solar systems there is even a “third half” (if there is such a thing); maintenance!

A good measure of the quality of a PV plant is the Performance Ratio: it separates “the good, the bad and the ugly” solar systems from each other. Find out more in our whitepaper: 6 key influences that determine PV performance ratios.

Read More [fa icon="long-arrow-right"]

Irradiance measurements for your solar plant’s performance ratio

[fa icon="calendar'] 22-jun-2017 15:59:59 / by Jan-Willem Sips posted in performance ratio

[fa icon="comment"] 0 Comments

Irradiance measurements to calculate the Performance Ratio (PR) for solar parks sometimes cause controversy: A few years ago, I visited an O&M conference, where cheating with irradiance measurements was openly discussed on the podium. There were about 200 attendees in the room; And after a presentation on irradiance measurement at a solar conference, our R&D manager was asked whether Kipp & Zonen could make instruments that were less (!) accurate.

This shows that irradiance measurements can cause headaches; but they are absolutely necessary for calculating the Performance Ratio. Besides the output generated relative to the solar irradiance received on the panels, PR is the figure looked at by most players involved in the PV power plant business.

Find out more in our whitepaper: 6 key influences that determine PV performance ratios.

Read More [fa icon="long-arrow-right"]

Puzzled by PV Performance Ratios?

[fa icon="calendar'] 15-jun-2017 11:36:43 / by Jan-Willem Sips posted in pv, performance ratio, pv performance

[fa icon="comment"] 0 Comments

 
In most PV plant monitoring software you can choose the definition of the Performance Ratio (PR). So, a specific PV plant can have different Performance Ratios at the same time? Yes, and no…

Puzzled? Is Performance Ratio misleading? You don’t have to be puzzled, and no, Performance Ratio is not about misleading, it is about facts! Read our whitepaper – 6 key influences that determine PV performance ratios – to get a better understanding.

Read More [fa icon="long-arrow-right"]