McCune Solar Works is known for excellence and high quality in everything we do.

We select products based on Reliability, Low Maintenance and Long Life.

Please use our Contact Form to inquire on price and delivery. 

We are the exclusive SW Distributor for Hoymiles Inverters.

McCune Solar Works supports our fellow solar companies by supplying the lowest cost, best quality equipment. We are now the exclusive SW distributor for Hoymiles Micro Inverters, the highest quality, lowest cost, most reliable inverters in the world.

In an effort to elevate our solar industry nationwide and to provide higher quality, lower cost equipment we are instituting a cooperative discounted buying opportunity for all solar installers to take advantage of container volume purchasing together as a group. All companies will be treated equally as to price, delivery and service. We will help you to become more profitable. The installations will be less costly in labor and equipment, more reliable, with lower O&M costs, and improve LCOE and cash flow. The Hoymiles microinverters have an MPPT efficiency of 99.8% and almost zero failure rate (0.18%). They are suitable for commercial and even utility scale projects, cost less than string inverter, optimizer, and other microinverter installations. No good reason to install anything else.

Please use the contact form “Get in Touch” to convey your interest or questions. We will have demonstrations, purchase meetings, and training events in the coming weeks.

Hoymiles Installation Video

Hoymiles Catalog

Commercial, Industrial and Utility Scale

3.6MW AC Coupled MicroInverter – Asia

Unless a Hybrid Inverter is specified, there is no longer any reason to install a string inverter array. Hoymiles Microinverters have achieved parity in cost with string inverters. Now even Utility Scale AC coupled microinverter installations are not only easier and less expensive but Module Level Monitoring and Control is possible as well. Ease of installation with standard electrical equipment and wiring methods brings down installation costs for faster commissioning and ease of  O&M.


Hoymiles Microinverters with a failure rate of less than 0.18% are far more reliable than the leading microinverter in the USA market, in fact less costly and more reliable than any other microinverter or optimizer.

10KW Residential USA

10KW Residential USA



Data Sheet Click Here
Hoymiles 4 – 1 microinverter MI-1000/MI-1200

Data Sheet Click Here
Hoymiles 2 – 1 microinverter MI-500/MI-600/MI-700

Data Sheet Click Here
Hoymiles 1 – 1 microinverter MI-250/MI-300


“The World’s First Single-Phase Microinverter” designed for 4 solar panels with dual MPPTs, with wide DC input operating voltage range(16-60V) and low start-up voltage (22V only).
Hoymiles 4 in 1 microinverter MI-1000/MI-1200 is “The Best Power Density Microinverter” ever in solar industry with extremely light weight – only 3.75kG including integrated DC & AC cables; 3-phase wiring makes it easy to be configured by Hoymiles 4 in 1 microinverter for MW size industrial/commercial PV power stations (one the world’s biggest microinverter projects configured by Hoymiles microinverter is 3.6MW).
  • Safer
    Up to 60V DC input voltage (natural rapid shutdown) to guarantee no electric shock & fire risk on rooftop<>
  • Stronger
    Module-level MPPT to ensure 10-30% more energy harvest compared with string inverter
  • Smarter
    Module-level monitoring for remote troubleshooting & maintenance management
  • Smaller, Lighter & Easier
    Smaller than A4 paper size, 1.98kG only with AC cable (1 m) integrated, one person’s easy installation
  • More stable & reliable
    6000V surge protection, MTBF (mean time between failure) > 550years, yearly failure rate < 0.18%

Better Payback (IRR)
Module-level solution, extremely low failure, longer generation(star-up voltage 22V only), low LCOE (Levelized Cost of Electricity)for long period (20+ year) of investment

Model MI-1200 QS1
INPUT DATA(DC) Recommended input power(W) 240~380w 250~365
Start-up voltage (V) 22 20
MPPT tracking voltage(V) 16-60 22-48
Peak power MPPT tracking voltage(V) 32-48  
Operating range(V) 16-60 16-55
Maximum input voltage (V) 60 60
Max input current (A) 10.5A*4 12A*4
Overvoltage class DC port  II  II
Max.Inverter backfeed current to array (A) 0 0
Max. DC short circuit current(A) 15 15
  Rated output power(W) 1200 1200
Nominal output current(A) 5.45@220V a.c, 5.21@230V a.c, 5@240V a.c 5.22@ 230V ac
Nominal  voltage/range(V) 220/180-275,    230/180-275,     240/180-275,   230/184-253
Adjustable Output Voltage Range(V) 180-275 160-278
Nominal frequency/range(Hz) 50/45-55 ,  60/55-65   50/48-51
Adjustable Output Frequency Range(Hz) 50/45-55 ,  60/55-65  45.1-54.9
Power factor >0.99 >0.99
Output current harmonic  distortion <3% <3%
Maximum panel connection per one branch 4  
Overvoltage class AC port  III  III
EFFICIENCY Peak inverter efficiency 96.60% 96.50%
CEC weighted efficiency 96.50%  
Nominal MPPT efficiency 99.80% 99.50%
Night time power consumption(mW) <50 30
MPPT number 2 4
MECHANICAL DATA Ambient temperature range(℃) ﹣40 ; +65 ﹣40 ; +65
Operating temperature range(℃) ﹣40 ; +85 ﹣40 ; +85
Dimensions (W×H×D mm) 280*176*33 281*231*41.3
Weight (kg) 3.75 4.5
Enclosure rating IP67 IP67
Cooling Natural Natural
Connector type MC4 MC4
Relative humidity range  0% to 100%  4%~100%
Pollution degree PD3 PD3
FEATURES Communication Wireless Wireless
Compatibility 60 and 72cells pv modules 60 and 72cells pv modules
Monitoring DTU ECU, Via EMA**Online Portal
Compliance FCC Part 15 Class B, UL1741, CAN/CSA-C22.2 NO.0-M91, 0.4-04, AND 107.1-01, IEEE1547; EN6100-6-1/2/3/4 CNCA/CTS0004:2009A, EN62109-1/2, AS3100\AS4777, VDE4105\VDE0126, EN50438:2013, UTE C 15-712-1 EN 62109-1;EN 62109-2;EN 61000-6-1;EN 61000-6-2;
EN 61000-6-3;EN 61000-6-4
Grid Connection Compliance
VDE0126-1-1/A1 VFR2014,ERDF-NOI-RES_13E,UTE C15-712-1, EENN5500443388
Warranty(Year) 12 10

Click Here for Quote Pre Order Form


We  offer only Canadian Solar PV Modules for their high quality as well as their sustainable business model. As many Solar PV manufacturers are in and out of business and bankruptcy, Canadian Solar, throughout all the ups and downs in the solar industry, continues to maintain company stability and invest in tooling, innovation, capacity, new products, quality and long term planning.

Making the Difference

30 Year Warranty Double Glass

We are a stocking Distributor of these High Quality PV Modules


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Our products are included in the design databases of HelioScope.
The new standard in solar design software
HelioScope enables designers and engineers to work 5x-10x faster compared to other programs.
Our customers receive 10% discount on HelioScope Design subscription.
Use our
Get in Touch form, enter “HelioScope” in the Subject line. We will hook you up.

SKB Cases

SKB Cases

We will drop ship SKB Cases to your location. A great product from a great company

Use our “Get in Touch” contact form to inquire or order SKB Cases.