There are many elements that are solid at 1500 degrees Celsius. Here are a few examples:

* Metals:

* Tungsten (W): Melting point of 3422 °C

* Rhenium (Re): Melting point of 3186 °C

* Tantalum (Ta): Melting point of 3017 °C

* Molybdenum (Mo): Melting point of 2623 °C

* Osmium (Os): Melting point of 3033 °C

* Nonmetals:

* Carbon (C): Depending on the allotrope, carbon's melting point can vary greatly. For example, graphite melts at around 3550 °C, while diamond melts at 4030 °C.

* Metalloids:

* Silicon (Si): Melting point of 1414 °C

* Boron (B): Melting point of 2076 °C

Important Note: This is not an exhaustive list. There are many other elements that could potentially be solid at 1500 °C depending on their specific allotrope and other factors.