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- Written by: Jari Ojala
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A radio amateur uses various rotating towers.
Heights 12-48 m.
30m high mast elements
TOP-rotator plates
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Antenna building is as child play;)
Or cold and hard work...
15 m 5-element yagi antenna, with delta-match feed
Antenna tuning
About 3000 u-bolts for assembling the antennas
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- Written by: Jari Ojala
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Solar power plant project.
Power 12,5 kWp
Total costs of the project are 8500 €
Planned repayment period 14 years. Realized income for four years approx. 5000 €.
Energy has been so expensive in 2022 that the value of the return was
a record, around 2000 EUR.
By 2026, the revenue generated by the panels will have reached €7,300, so the payback period is estimated to be 10 years. I consider purchasing the panels an unprofitable investment, even though not a single euro was paid for the installation work!
Income and energy per month.
Ready for production !!