Vano Gelashvili

I am a full-stack developer and business automation architect. My day job is building systems that turn messy inputs into numbers people can act on — APIs, data pipelines, internal tools. EcoPle came out of doing that for my own house.

When I started pricing a heat pump and a solar array, I found the same thing everybody finds: plenty of articles telling me the technology was great, almost none showing the calculation. The numbers that decide whether a retrofit is worth doing — your load, your tariff, your capacity factor, your payback period — were either missing or buried inside a form that wanted my phone number first.

So I built the calculators instead. They run entirely in your browser, they show every intermediate figure rather than just a verdict, and none of them ask who you are. The guides on this site exist to explain what the calculators are doing and where their inputs come from.

A word on what I am not. I am not an HVAC engineer, a licensed electrician, or a certified energy auditor. I do not carry professional indemnity and I cannot sign off on your installation. What I can do is read a datasheet carefully, check a figure against the DOE and NREL datasets, and show my working so you can check it too. For anything that needs engineering judgement about your specific building, get a site survey from someone qualified to give one.

The articles here are drafted with AI assistance and reviewed by me before they go up. I think readers are entitled to know that, so it is stated on the About page and in the editorial policy rather than hidden.