Guides
Guides to solar PV systems
Plain-language articles on solar PV for homes and small businesses in Kardzhali and the region: cost, batteries, grid connection and selling surplus power.
Updated:
In brief
What is in the guides?
The guides answer, in plain words, the questions people ask before putting solar PV on a house or a small business in the Kardzhali region: what a system costs, battery or not, whether a permit is needed and how the grid connection with ER Yug works, and whether surplus power can be sold. Each article opens with a short answer, with the details and the sources under it. Prices depend on the site, so for them we prepare an offer from its data.
What a solar PV system for a house costs
What makes up the price of a solar (photovoltaic) system for a house, what decides its size and how to compare two quotes.
Solar panels or photovoltaic panels: is there a difference
Solar and photovoltaic panels for electricity are the same thing. When "solar" means something else, and what kWp, kWh and the other terms in a quote mean.
A PV system with a battery or without
What a battery changes in a solar system, when it makes sense, when you can do without it and why backup power does not come automatically.
Connecting a PV system to the grid operator: the steps
The two routes for a solar system in the Kardzhali region — own consumption with a notification to ER Yug, or as a producer — and the steps along each.
Selling the surplus power from a PV system
When a solar system may feed power into the grid, the routes for selling the surplus and what to try before that.