Bunded reservoir

As an alternative to a barrage across an estuary, it is theoretically possible to enclose an area of a tidal estuary or tidal region of the sea with an embankment or bund (see the St Malo project discussed above). The principle involved is the same, creating a reservoir that can be filled at high tide and then allowed to empty when the tide has fallen. The environmental effect of such a structure would probably be less dramatic than complete closure of an estuary but costs are likely to be higher.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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