Power headroom reporting and channel state information reporting for energy harvesting devices

Methods, systems, and devices for wireless communication are described. An energy harvesting wireless device may accumulate energy during an energy harvesting state for use in subsequent operation. In some cases, the energy harvesting wireless device may detect a trigger, such as a change in an energy status of the energy harvesting wireless device or explicit control signaling from a network, for transmitting a power headroom report (PHR), channel state information (CSI), or both. The energy harvesting wireless device may transmit the message including one or more of the PHR or the CSI and indicating that energy information (e.g., an energy report, an energy request, or both) is multiplexed with the PHR, the CSI, or both. In some cases, the message may include control information such as a medium access control (MAC) control element (MAC-CE).