UK integrated energy infrastructure company Smart Metering Systems plc (<a href="https://www.londonstockexchange.com/stock/SMS/smart-metering-systems-plc/company-page" target="_blank">LON:SMS</a>) has agreed to be acquired by US private equity firm KKR & Co (<a href="https://www.nyse.com/quote/XNYS:KKR" target="_blank">NYSE:KKR</a>) in a deal with an enterprise value of about GBP 1.4 billion (USD 1.76bn/EUR 1.63bn).