Solar roof tiles are also referred to as solar shingles or solar slates and are used as a replacement for traditional solar panels. These tiles are made with small solar panels consisting of photovoltaic cells that absorb sunlight exactly the same way as conventional panels do.
This energy output is converted into DC (Direct Current) form. Further, a solar inverter helps produce AC (Alternating Current) output and can be connected via electrical cables to a battery to store excess electricity generated.
In other words, we can say that solar roof tiles are just a modernised version of traditional panels with multiple shingles closely connected in an array. However, one significant difference to note is that installing solar tiles will not alter your existing roof's appearance.