UK-based solar developer Lightsource bp has agreed a USD 140 million (EUR 128.2m) tax equity deal with Barclays Plc <a href="https://www.londonstockexchange.com/stock/BARC/barclays-plc/company-page" target="_blank">(LON:BARC)</a> to finance the construction of a 180 MWdc solar park project in Louisiana, USA.