  New solutions for $(2+1)$-dimensional Einstein-Maxwell space-time are found
for a static spherically symmetric charged fluid distribution with the
additional condition of allowing conformal killing vectors (CKV). We discuss
physical properties of the fluid parameters. Moreover, it is shown that the
model actually represents two structures, namely (i) Gravastar as an
alternative of black hole and (ii) Electromagnetic Mass model depending on the
nature of the equation state of the fluid. Here the gravitational mass
originates from electromagnetic field alone. The solutions are matched with the
exterior region of the Ba$\tilde{n}$ados-Teitelboim-Zanelli (BTZ) type
isotropic static charged black hole as a consequence of junction conditions. We
have shown that the central charge density is dependent on the value of $M_0$,
the conserved mass of the BTZ black hole. This in turn depends on the black
hole event horizon which again is related to the Hawking radiation temperature
of a BTZ black hole. Thus one may have a clue that the central charge density
is related with Hawking radiation temperature of the BTZ black hole on the
exterior region of the static charged fluid sphere.
