German insurer Allianz SE (ALV.XE) and reinsurer Munich Re AG (MUV2.XE) are considering a plan to invest in German power grid expansion at the Dutch state-owned network operator TenneT Holding BV, the daily Handelsblatt reports Monday, citing people close to the negotiations.

According to the newspaper, the German government isn't satisfied with the slow progress TenneT's German unit TenneT TSO GmbH is making in connecting wind farms off Germany's North Sea coast with the mainland, and German economics minister Philipp Roesler will discuss the issue when he visits his Dutch counterparts at the end of the week.

German utilities have also expressed concern about the slow progress. TenneT TSO GmbH has said delays are due to lengthy approval procedures and technical difficulties faced by subcontractors such as German engineering giant Siemens AG (SI) in increasing grid capacity and connections.

According to the article Monday, the economics ministry has lost patience and is now seeking an alternative to TenneT to connect and expand the grid.

A German economics ministry spokesman wasn't immediately available to comment on the report and Allianz declined to comment to Dow Jones on the report. In the past, the company has said it is interested in expanding infrastructure investment.

A Munich Re spokeswoman said she couldn't confirm the statements in the article. The company has said it is targeting investment of 1.5 billion euros ($1.8 billion) in infrastructure projects and EUR2.5 billion in renewable energy and technology.

Recently, RWE AG (RWE.XE) said sluggish progress is threatening the economic viability of its showcase, EUR1-billion, Nordsee Ost wind farm. Originally expected to begin operations at the end of this year, Nordsee Ost is now set to start producing power sometime in 2014.

In late May, TenneT and the other three German power transmission grid operators said investment of around EUR20 billion is needed to build thousands of kilometers of new power lines and upgrade the existing network over the next 10 years to ensure the country's network can cope with rapidly rising renewables supply.

Newspaper website: http://www.handelsblatt.com

-Write to the Frankfurt Bureau at djnews.frankfurt@dowjones.com

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