The energy ministry is adding final touches to guides for highly anticipated subsidy programs supporting roof-mounted solar panel and solar water heater installations.

One of the two guides could by announced by the ministry this Friday, while the other may follow suit next week, sources noted.

The subsidy program for roof-mounted solar panels, to offer a total of approximately 150 million euros in subsidies, will be restricted to households as funds currently available do not suffice to also include farmers and businesses in the support program, as had been originally intended.

The support program is expected to subsidize photovoltaic system installations with a maximum capacity of 10 kW if they are backed by batteries offering up to 10 kWh in storage capacity and are equipped for three-phase electricity supply.

It will also offer subsidies to photovoltaic systems with capacities of up to 5 kW, as long as they are equipped for single-phase power supply and incorporate 5 kWh batteries.

According to sources, the subsidy program for roof-mounted solar panels will be divided into three income-based categories.

Low-income households will be eligible for subsidies fully covering the cost of batteries and 65 percent of solar panels.

Individuals with income levels of up to 20,000 euros per annum and families with a combined income level of up to 40,000 euros will be entitled to subsidies fully covering battery costs and 35 percent of solar panels.

Also, individuals with income levels of more than 20,000 euros per annum and families with a combined income level of more than 40,000 euros will be entitled to subsidies covering 90 percent of battery costs and 25 percent of solar panels.

As for solar water heating systems, first-home owners and owners of holiday homes will be eligible for subsidies covering between 50 and 60 percent of this water-heating technology’s overall cost, depending on income level and boiler capacity.

Income-based criteria for this subsidy program are expected to divide interested parties into three categories: Below 5,000 euros per annum; between 5,000 and 10,000 euros per annum; and over 10,000 euros per annum.