Solar panels on a roof

Should You Add Batteries to Your Rooftop Solar Installation?

Nickolas Hein – 4/23/18

In the past few years battery technology has advanced at a rapid rate, resulting in a rapid decrease in the cost of electric storage and the associated systems (Fig 1).  Although this has been driven primarily by electric vehicle adoption, home battery systems have been direct beneficiaries. According to Bloomberg New Energy Finance “Lithium-ion battery packs are selling at an average price of $209 a kilowatt-hour, down 24 percent from a year ago and about a fifth of what it was in 2010, a Bloomberg New Energy Finance survey shows. The rate has further to fall — reaching below $100 a kilowatt-hour by 2025, according to a report by BNEF analyst James Frith.  Developers of stationary storage systems — like the kind that back up rooftop solar panels — can expect to pay 51 percent more than automakers because of much lower order volumes.”

Recent Cost Reductions for Lithium Ion Batteries - Bloomberg

Recent Cost Reductions for Lithium Ion Batteries – Bloomberg

If you’re considering installing solar panels in the near future, you probably want to consider adding battery storage to your system. We’ve asked Ed Zinthefer, President of Arch Electric, to answer some of the common questions from the homeowners before they install a new system.  Read more

Logo for LSC

2018 Solar Investing

Tony Hartmann – 2/20/18

No such thing a ‘sure thing’ when it comes to investing, right? Well, if you think the sun’ll come up tomorrow, investing in solar infrastructure is as close as it gets. Since its beginning, the Legacy Solar Co-op (LSC) has facilitated solar investment not only because renewable energy is clean and sustainable, but because it makes sense economically. A lot of sense. Not-for-profits and home-owners almost always see a return on investment (ROI) in the neighborhood of 10-12%, businesses 15% and more. So, the 2018 solar investor can do good and make a sweet return on their investment…

As Don Pardo used to say, ‘but wait, there’s more…’

Legacy Solar Co-op has long been an advocate for energy efficiency efforts, projects that go hand and glove with distributed (pv) energy production. In Wisconsin, the Focus On Energy (FOE) program does more than just reward you (to the tune of thousands) for installing solar PV. You get further cash dividends by swapping out motors, furnaces, water-heaters, air conditioners, light bulbs/fixtures and much, much more. For starters, rate-payers can get FREE STUFF, like LED bulbs and water-saving fixtures just by going here and choosing a ‘pack’.

but again, there’s more… Read more