NEW YORK ( TheStreet) -- The
$40 billion Goldman Sachs ( GS - Get Report) said last week it will invest in green technologies over the next 10 years, or $4 billion a year, actually represents a slowdown from last year's $4.8 billion. But you won't hear environmentalists complaining. The last time Goldman made a green investment promise, a $1 billion commitment in 2005, it eventually turned into $24 billion by 2011. In other words this is not a charity. It's not greenwashing. It's a simple acknowledgment that Goldman sees big profits in solar, wind and biomass power, not to mention the cheapest renewable energy of all, conservation. While most investor attention has been focused on failed efforts such as Solyndra or political battles concerning feed-in tariffs and other aid, a new generation of gear is coming along that can do economic battle with fossil fuels without subsidy: The University of Chicago has a new cell-making process that's as simple as soaking a substrate in a semiconductor solution and drying it. The new cells also use infrared energy, not just visible light, to produce electricity. The University of Texas has crafted an organic plastic semiconductor that could allow for plastic solar cells with double the efficiency of current "rare earth" systems. Semprius of North Carolina has demonstrated a cell with a 33% efficiency, again double what current systems offer. Swedish scientists are working on a catalyst that breaks water into oxygen and hydrogen efficiently enough for the hydrogen to be used as fuel. The Massachusetts Institute of Technology has developed a three-dimensional panel array that can handle far more panels, and harvest far more energy per square meter, than anything now on the market. The There are so many dimensions on which the industry can save -- materials cost, manufacturing cost, installation cost, channel cost -- that increases in efficiency are really just icing on the cake. (Oh, and have you checked out the University of Tennessee is working on a "biosolar" system that uses the same system plants used to harvest energy, again saving enormously on materials costs. $999 plug-in solar panel at Amazon.com ( AMZN - Get Report)?) While I mainly cover solar energy, there are breakthroughs happening across the space. The Goldman Sachs release mentions LED lighting, far more energy-efficient and longer-lasting than those "curly" flourescent bulbs and coming down rapidly in price. (My Christmas lights are already LEDs.) Engineers have found ways to drop the cost of wind power systems 20% over the last 10 years, making them competitive with grid electricity in many areas. Chevron ( CVX - Get Report) and Exxon ( XOM - Get Report) have both invested in algae fuels, which are already producing chemical by-products at prices competitive with oil-based manufacturing. The point is that while Goldman Sachs is patting itself on the back, it's really just pointing out what time it is. It's sunrise for the renewable industries, and that could spell sunset for high-end oil plays.