Discussions on PV power Parity

Nonlinear Adjustment Towards Purchasing Power Parity

On the Impact of Partial Shading on PV Output Power

It is a well-documented fact that partial shading of a photovoltaic array reduces it output power capability. However, the relative amount of such degradation in energy production cannot be determined in a straight forward manner, as it is often not proportional to the shaded area. This paper clarifies the mechanism of partial PV shading on a number of PV cells connected in series and/or parall...

The Purchasing Power Parity Debate

Our willingness to pay a certain price for foreign money must ultimately and essentially be due to the fact that this money possesses a purchasing power as against commodities and services in that country. On the other hand, when we offer so and so much of our own money, we are actually offering a purchasing power as against commodities and services in our own country. Our valuation of a foreig...

Design Characteristics of High-Power PV Inverters

While high-power PV installations certainly vary in configuration, a typical commercially installed system (Figure 1) consists of the following: • PV modules stacked in strings not to exceed 600 V open-load, referenced to ground on either positive or negative leg • A UL1741-certified inverter whose function, in addition to converting direct current to alternating current, is to act as an autono...

The Road Ahead for Solar PV Power

Over the past decade, solar photovoltaic (PV) power has experienced dramatic deployment growth coupled with substantial decreases in system prices. This article examines how solar PV power is currently positioned in the electricity marketplace and how that position is likely to evolve in the foreseeable future. We first assess the current cost competitiveness of solar PV in select U.S. location...