Ohio Senate Bill 58 puts solar RPS at risk

If you live in Ohio and own or are considering installing residential or light commercial PV solar, please contact Governor Kasich at his office and tell him you want him to oppose SENATE BILL 58, currently in discussion.
I’ve encouraged everyone I know to do so, and I emailed his office last week. Below is the email response I got:

Dear Joseph:

Thank you for writing with regard to Senate Bill 58. Your letter has been forwarded to me for my review. We appreciate that you took the time to share your views about this important piece of legislation.

Senate Bill 58 is currently being debated during the 130th session of the Ohio General Assembly. Please be assured Governor Kasich will keep your views in mind if Senate Bill 58 is passed by the General Assembly and forwarded to the Governor for his signature. I encourage you to share your concerns with your legislators, as your input will be important as they review this legislation.

Once again, thank you for writing to Governor Kasich. Please do not hesitate to contact the Governor’s office if we may assist you in the future.


Dave Ward Director of Constituent Affairs

We must all pull together to RAISE the percentage of the RPS (Renewable Portfolio Standard) upon which the Solar SREC values are tied, if we want to preserve the extra value that this represents to the smaller producers of solar energy!! It’s currently pegged at a max of 1/2%, and should be more like 2% of the total 12% renewable energy long term goal.


Power Point for Mother Earth News Festival in 7 Springs PA

Just thought I’d post this for the convenience of those folks who might attend my seminars this year, and would like to review them at their leisure from home. Even if you don’t attend the fair, there’s some pretty good info in this presentation for anyone considering doing PV Solar as a DIY project. The rest of my blog is filled with lots of detailed photos and text from solar projects of all sizes and equipment types.

Cinci Home Solar presentation at 2013 Mother Earth News Fair in 7 Springs PA

Finish phase 2 expansion at East Fork Stables

Racking goes up at East Fork Stables

Cinci Home Solar works with EFS to get racking up using 50% on hand materials.

Missed this photo on the first part of this adventure. The owner had materials on hand, and made the posts of Steel L channel, the beams from Steel S-channel, and the barn support brackets from 2 inch steel L material. The owner (George) is a VERY resourceful fellow – some might call him a scrounger, but I call him SMART! I passed along a great vendor deal on the solar panels and he purchased them direct. The BOS (balance of system) materials was purchased through Cinci Home Solar at great pricing, bringing the whole project in at about $3/watt, and this includes the battery bank and backup power inverters in addition to the Enphase micro-inverters behind each panel. The work was spread over 4 full days, with the helper crew varying from 1 to 3 guys and myself. Plenty of manpower to get this rather large project done in a timely fashion. Winter is really variable in Cincinnati, and whenever the weather was predicted to be above 40 and sunny, George called and we got the job done. Fortunately, this job was a quick drive from my home, and it wasn’t a problem. Normally, these 3 or 4 days would have been all condensed into one extended visit! I aim to please, whenever possible…


DIY Solar array expansion by Cinci Home Solar

DIY Solar expansion -adding 2 more rows to bottom of 32 panel array.

After we finished the 32 panel array, George saw that some minor grading of the ground near the bottom would allow plenty of room for 2 more rows! A week later he called me and said “Hey Joe, come on out and lets get these 2 rows installed – tomorrow’s weather looks great. So we did!  When I ordered the extra components, we also added 8 more rails – one under each of the 8 columns of the upper 4 rows. You can see them mid-panel in the picture to the right. This provided the extra strength and rigidity that the span required for both wind and snow loading. Splicing the extra rails that extend to the newly installed lower beam also provided a counterbalance to the free span above.
The two missing panels at the lower left were intentionally left off because of a stone access road to the hay barn that George didn’t want to move.


DIY Solar install of Enphase M215 Micro-inverters

DIY Solar installation of Enphase M215 Micro-inverters.

This is what the backside looks like after everything is in place. After the rails were set, the Enphase M215 Micro-inverters were mounted. Then the #6 bare copper ground wire was run in series to each inverter. We grounded BOTH ends of the #6 copper, just because we could. Next came the Enphase TRUNK Cable, mounted with stainless steel clips to the rails. Then the panels were added, the micros were plugged in to the trunk cable and the panel leads connected to the micros. One end of the trunk cable is sealed with a weather tight cap, and the other goes to a weatherproof junction box (white) to transition to standard exterior rated 12-3 with ground romex. The romex connects to a breaker box with a 20 amp 2 pole breaker for each string of 16 and 1 string of 14 panels. Then, the entire array is nicely dressed using tie wraps so that all the wiring is suspended between the panels and the bottom of the rails to keep it from whipping in the wind or getting snagged by anything.



Power panel mounted below array

Power Panel beneath the array, mounted to the side of the hay barn.

Here’s the power panel. Public Utility Commission in Ohio says any array over 6Kw must be metered by a UTILITY GRADE meter. Got one on Ebay for $35. Breaker box on left contains the 3 solar breakers. That feeds through the meter to the master breaker box on the right. Master breaker box connects to the utility grid via a buried conduit over to the other barn that had power in it already. Below the utility grade meter is the Enphase ENVOY monitoring unit that ties all this to the internet so George can watch things from his home computer. He can share a link with his friends as well. I’ll post this link soon as I get it from George! The Utility voltage here is rather high – close to the limits for most inverters, at 254Vac. This causes a few of the inverters to occasionally shut down (to protect themselves). I’ll be looking into this further on my next visit to see how we might correct this…


Almost finished array by Cinci Home Solar

Almost finished DIY solar array accomplished with a little help from Cinci Home Solar!

Here’s the finished array. Still need to trim the excess rail length at the bottoms. If you look close, you might just spot some mis-alignment within the array. George got 2 pallets of panels. Same part number, same vendor, but one pallet was 1/2 inch shorter on the long side (out of spec…). We didn’t catch this till 5 were mounted in the top row. George, being a prudent and thrifty fellow, called the panel supplier and negotiated a compromise that didn’t require a return of the panels. The size only affects the esthetics slightly, and a cost reduction is pending!  The Enphase ENVOY normally communicates over the power lines, but there’s a half mile of them back to the house and that’s too far for it to work, so I added an Engenius EOC-1650 at the house as an access point, and atop the array as a client/bridge. It works great – with 100% signal integrity, and also provides WIFI to his customers and visitors! The EOC-1650 is that little white gadget at the top right of the array.

24 Volt Battery Box Vent Fan Control Circuit

Battery vent fan control switch

Schematic for 24VDC Battery box vent fan controller

One of my backup systems uses a Magnum MS-PAE 4024 inverter, which doesn’t have any built-in fan controller. Since batteries give off hydrogen during both normal and equalization charging, it’s important to vent the batteries to the outside with a brushless fan. This little circuit does the job nicely for a 24 volt battery bank. Here’s how the circuit works: Battery voltage comes in and goes directly to the LM358 op-amp and P1-R1. P1 sets the trip point where the fan will turn on. VR1 and R2-R3 provide a stable reference voltage for the op-amp. R4 adds some hysteresis so the fan doesn’t cycle on/off when near the trip point. the 4 volt zener assures that Q1 turns fully off, since the output doesn’t swing to the rails. R5-R6 assure that Q1 turns on/off completely. Q1 is good for fans that use up to 100 milliamps of current. If you have a bigger fan, use Q1 to turn on a relay… This won’t work for 12 volt or 48 volt systems, but I might design those if there’s any interest here…. Enjoy!

EERE Residential PV Inspector training

Just finished (and passed) the new EERE Residential PV Solar inspector training program. It’s FREE, for now, at http://www1.eere.energy.gov/solar/sunshot/index.html and it’s very educational. It covers every aspect of a residential solar install and not only instructs on the backing materials, but offers a chapter by chapter self assessment (test) to see if you learned what they were trying to teach! All but ONE chapter was a breeze for me, and the tough chapter was on equipment. I think the questions/answers could be a little more clear in this chapter, but HEY, this is a BRAND NEW TRAINING AID, and I recommend that ALL installers take it and PASS it, just for the sheer value of knowledge!!

POLLEN can reduce your solar output!

I’ve not been on the roof to clean my panels since I put them up last July. This past Spring, I had to wash my car twice to get rid of a sticky yellow buildup of pollen, but it didn’t occur to me that this same pollen could be on my panels. Imagine my surprise when I went up there and found the entire surface of all the panels to be COVERED with pollen – it was like 150 grit sandpaper! This most certainly caused the light to diffuse and reduce the amount of solar energy impacting directly on the solar panel glass!! About 15 minutes with a bucket of soapy water and a cleaner/squeegee made them good as new. Solar output increased immediately by about 5% compared the the day before (both days equally sunny with no clouds). Moral of the story: if you want max power, you need clean panels! If you can reach them with a stream of water from a hose, do this regularly to prevent buildup of dirt and pollen!

Electric Vehicle Seminar at IBEW training center in Cincinnati

I went to the GEO (Green Energy Ohio) EV Seminar at the IBEW Training Center on Cincinnati’s West side yesterday and it was a relaxed, fun time. I got to drive the worlds 1st and only 100% electric Jeep Cherokee as well as several different Chevy Volts!  Several speakers gave great presentations and there was a great deal to absorb in a short time. I did meet the admin for the EV program at the center, and I made the decision right on the spot to sign up for the fall class in EV Technology and to get my EV Certification by the end of this year! I’m already NABCEP certified for PV Solar installation and Technical Sales, and the electric car market is a good BLEND with solar, so I feel this is a great direction to grow in!

Chevy Volt in full advertising paint job

Fully decorated Chevy Volt is a rolling billboard!!tion to grow in!!!

Owner and DIY Solar Consultant prepares for test drive of Jeep Cherokee Electric Conversion

Joe prepares to test drive the new 100% electric Jeep Cherokee for the 1st time!100% Electric tag on this Jeep Cherokee