Abstract: One embodiment relates to an earth-penetrating apparatus. The apparatus includes a pole with a hollow portion therein and a bottom end which is configured to be driven into ground. Anchoring parts are configured to be radially extendable from the pole. In addition, an expansion mechanism is configured to apply a force to the anchoring parts so as to radially extend the anchoring parts from the pole after the pole has been driven into the ground. Another embodiment relates to a solar collector arrangement that includes a plurality of earth-penetrating anchors. Other embodiments, aspects and features are also disclosed.

Abstract: One embodiment relates to an earth-penetrating apparatus. The apparatus includes a pole with a hollow portion therein and a bottom end which is configured to be driven into ground. Anchoring parts are configured to be radially extendable from the pole. In addition, an expansion mechanism is configured to apply a force to the anchoring parts so as to radially extend the anchoring parts from the pole after the pole has been driven into the ground. Another embodiment relates to a solar collector arrangement that includes a plurality of earth-penetrating anchors. Other embodiments, aspects and features are also disclosed.

Abstract: A PV assembly comprises a support assembly and first and second PV elements mounted to the support assembly with a gap separating the PV elements. The PV elements are bifacial PV elements having upper and lower active, energy-producing PV surfaces. The gap is a light-transmitting gap. The assembly also includes a light-reflecting surface carried by the support assembly beneath the PV elements and spaced apart from the PV elements so that light passing through the gap can be reflected back onto the lower PV surface of at least one of the PV elements.