UK PV wholesaler Metgen has announced a joint venture with Lincolnshire-based business 4Eco to bring its power storage unit, immerSUN to market.

The immerSUN monitors electricity generated from a customer’s solar PV system which is about to be exported back to the grid and diverts it to the immersion heater.

Managing Director of Metgen Ed Webb said: “The beauty of the immerSUN is it gives our installers an opportunity to revisit their customers with another really good proposition. Despite the weather this year, in the most part, PV installations have been outperforming forecast; to now offer them a low cost, and simple-to-install addition that makes the good seem even better, is an easy sell. From a business standpoint, it’s not only a way to fill in the gaps between jobs, keeping teams busy and motivated; it’s also a chance to win referrals and pick up leads from happy customers.”

Tim Roebuck, Head of Sales & Marketing at Metgen continues: “We looked at a number of products but of them all, the immerSUN seemed to make the most sense. By using the existing immersion element there are no plumbing or cylinder issues, and through its ability to vary the power being delivered ensures it automatically directs only excess power to the hot water cylinder.  immerSUN then has the intelligence to rapidly identify if the electrical load from the house increases, e.g. the washing machine is turned on, and then reduce the amount sent to heat water thus helping the homeowner maintain independence from the grid. In this way the immerSUN demonstrates that an estimated payback of a fully installed unit could be as early as three years and certainly speeds up the overall ROI for an installed PV investment.”