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In recent years, numerous active galactic nuclei have been discovered in eversmaller galaxies, questioning the paradigm that dwarf galaxies do not harbourcentral massive black holes. Even if such black holes exist, feeding them bygas streams is difficult, since star formation should be more efficient thanAGN feeding in dwarf galaxies. In this paper, I investigate the possibilitythat tidal disruptions of stars are responsible for the observed AGN in dwarfgalaxies. I show that the expected duty cycles of TDE-powered AGN, $f_{\rm AGN}\geq 0.5\%$, are consistent with observed AGN fractions assuming that theoccupation fraction in dwarf galaxies is close to unity. Furthermore, Icalculate the properties of outflows driven by TDE-powered AGN under idealisedconditions and find that they might have noticeable effects on the hostgalaxies. Outflows themselves might not be detectable, except in gas-poorgalaxies, where they can accelerate to $v_{\rm out} > 100$~km/s, but increasedgas turbulence, more diffuse density profile and lower star formationefficiency can be discovered and used to constrain the black hole occupancyfraction and more nuanced effects on dwarf galaxy evolution. If massive blackholes form from seeds that are much more massive than stellar black holes, thentheir outflows should be easily detectable; this result, aided by observationsof high-redshift dwarf galaxies, provides a potential way of determining seedmasses of black holes.

Tidal disruption events can power the observed AGN in dwarf galaxies