Blog & Knowledge Base

Practical knowledge about renewable energy, subsidies and energy investments

August 5, 202615 min

Autumn 2026 in RES grants: the call calendar and how to prepare

August–December 2026: which grant programs for PV, storage and heat pumps are actually open, and which you should cross off your list.

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Grants for farmers: ARiMR I.10.2 programme funding up to 65% for solar with storage

Agriculture Guides

July 22, 202612 min

Grants for farmers: ARiMR I.10.2 programme funding up to 65% for solar with storage

The autumn ARiMR I.10.2 call opens on 5 October 2026 and offers grants up to 65% for solar with energy storage. Check the exclusions and a week-by-week preparation schedule.

Read article: Grants for farmers: ARiMR I.10.2 programme funding up to 65% for solar with storage

Home Energy Storage Subsidy (KPO): how it works and who should hurry

Subsidies & Financing

July 8, 202611 min

Home Energy Storage Subsidy (KPO): how it works and who should hurry

The home energy storage subsidy has very short application windows — sometimes just days. Check who can apply, how much you can get, and how to prepare in advance.

Read article: Home Energy Storage Subsidy (KPO): how it works and who should hurry

EV charger at the company: what the employer gains and how to settle it

EV Chargers

June 24, 202612 min

EV charger at the company: what the employer gains and how to settle it

A wallbox at the office is not just an employee perk — it is part of an ESG, fleet and energy cost strategy. We cover power sizing, settlements and a simple cost-per-100-km calculation.

Read article: EV charger at the company: what the employer gains and how to settle it

Hybrid inverter now or a standard one? A decision that comes back in 2 years

Photovoltaics

June 11, 202612 min

Hybrid inverter now or a standard one? A decision that comes back in 2 years

A 2-5k PLN premium for a hybrid inverter today can save 8-12k PLN of retrofit costs in two years. We check when it pays off and when a standard string inverter is enough.

Read article: Hybrid inverter now or a standard one? A decision that comes back in 2 years

A heat pump in a home with radiators — what has to work for bills to actually drop

Heat Pumps

May 20, 202612 min

A heat pump in a home with radiators — what has to work for bills to actually drop

You don't need to replace the whole heating system for a heat pump to work efficiently with radiators. We show when existing radiators are enough, how to check flow temperature, and what SCOP to expect.

Read article: A heat pump in a home with radiators — what has to work for bills to actually drop

Energy Storage

May 7, 202611 min

Self-consumption instead of net-billing: how energy storage changes the economics of your PV system

Net-billing in 2026 rewards on-site consumption, not exporting to the grid. We check how a battery raises self-consumption from 25-35% to as much as 80%, and when it pays off.

Read article: Self-consumption instead of net-billing: how energy storage changes the economics of your PV system

Bifacial panels on ground-mount systems: when double-sided modules make sense

Photovoltaics

April 23, 202610 min

Bifacial panels on ground-mount systems: when double-sided modules make sense

Bifacial modules on ground-mount installations can add 5-15% extra output, but only with the right ground albedo and mounting height. We check when it pays off and when it is an unnecessary expense.

Read article: Bifacial panels on ground-mount systems: when double-sided modules make sense

How much power does a 30 kW wind turbine really produce? Test-bench and field data

Wind Turbines

April 9, 202611 min

How much power does a 30 kW wind turbine really produce? Test-bench and field data

Real annual yield of a 30 kW turbine depends more on average wind speed and mast height than on nameplate power. We show numbers from our test bench and field installations.

Read article: How much power does a 30 kW wind turbine really produce? Test-bench and field data