Solar Powered Rainwater Project – Batteries

You may recall from an earlier post that the Solar Powered Rainwater Project requires substantial battery storage. In our original calculations, we decided we would need 15,796 watt/hours of storage to provide three days of autonomy (or days without sun).

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Weber Piano Action Rebuild – New Hammers!

We got back from the Red Power Roundup and it was time to catch up on the Weber project. Bernard texted me (with pictures!) that the hammers had arrived from Renner, and I was eager to see them. I went to his shop a few days later.

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Solar Powered Rainwater Project – The Chinese Connection

It’s been a while since I reported on the Solar Powered Rainwater Project. Since that early-April post, I’ve been gathering the rest of the parts, and we took our annual trip to the Red Power Roundup — this year at the Iowa State Fair in Des Moines. The biggest part of the delay was waiting for the inverter/charge controller. I wasn’t thrilled with the delivery delay on the device, but it turned out well in the end.

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Weber Piano Action Rebuild – On to the Wippens!

Another trip to Bernard’s piano shop and another list of tasks. I installed most of the rocker capstans (#2 in the diagram above) with the new square-drive screws at home, and used a little wax softened with mineral spirits to avoid … Continue reading

Weber Piano Action Rebuild – Keyframe with Refurbished Keys

I’ve been making progress on the Weber Project, but with a trip to New Mexico and various Spring activities, the pace has lagged. We’re back on track though. I mentioned in the last post that more work was needed on the bushings — they were too tight for the keys to move freely in the keyframe.

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Solar Powered Rainwater Project – Solar Panels Installed!

The new 250-watt solar panels arrived very quickly. I was eager to install them, but they were just a bit larger than I could handle safely on the garden shed roof. Fortunately, I didn’t have too wait long, and my neighbor Jason was available a few days later.

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Solar Power Rainwater Project – Panels and Angles

Major equipment purchase done, it’s time to think about the installation. The solar panels will be arriving in a day or two, and I plan to install them right away. Solar panels produce maximum power when the sun is perpendicular to … Continue reading

Solar Powered Rainwater Project – to Grid-Tie, or not to Grid-Tie. (that is the question)

Previously, we discussed the amount of power needed, and how that determines the size of the solar array. We also mentioned Days of Autonomy and how that informs battery storage. Now for Charge Controllers and Inverters — the brains that tie everything together. … Continue reading

Solar Powered Rainwater Project – Panels, Batteries and Inverters — Oh My!

In a previous Project post, we determined our power needs – 1300 watt-hours per day to pump water. Now we can calculate the battery bank capacity,  solar panel wattage, and inverter capacity needed for our installation. Let’s start with the panel … Continue reading

Weber Piano Project – Keyframe Cleanup

With key bushings installed, it was back to the piano shop. In order to test the work, we would need to try a few keys in the keyframe and see they fit. First though, a little cleanup was in order. … Continue reading