where eagles fear to perch

It can get very hot in our big greenhouse in the summer and we need to remember to leave the door propped fully-open if we're going to b...

From looking at my earlier post on growlights, it again raises a question that been puzzling me for a long time.   Take a look at this su...

Recent additions - electrical heater box and growlight panel, both on test I've put this on a separate post to my original , becau...

This is following on from my recent post on the greenhouse solar installation. To use any excess panel energy available during the cool...

We decided it would be good to have some electrical power in the greenhouse, primarily for growlights and at least one of our electric...

It's that time again...   As of this evening, we now have exactly two full years' worth of data from our experimental 540 Wp sola...

We now have one full year's worth of operational data from our five-panel experimental array, rated at 540 Watt-peak (Wp) in total. S...

I still see people on eBay bidding hundreds of pounds for 300W domestic wind turbines.   Some of the sales sites use terms such as '.....

This is the promised second part of the Solar Panels post.  In this, we'll take a look at Operational Data, Costs & Economics. Ope...

Firstly, my apologies for what is quite a long post without any pictures to break up the text....one of the advantages of writing this bl...

With the experimental photovoltaic (PV) solar panels in place and operating, I started to wonder about the feasibility of getting useful b...

Earlier this year, we decided to have a go at making our own solar panels.    It's very much a small and experimental array to check ou...