• Reduce greenhouse gases and dependency on fossil fuels
  • Easy way to go green – no change to your lifestyle
  • Lock in your energy costs
  • Save on your utility costs
  • Add value to your home
  • Be a leader in your community and family

Southern Alberta is blessed with many sunny days throughout the year. Kilowatt hour production fom kilowatt of installed PV. In fact, Calgary is the sunniest city during the winter and annually recieves an average of 4.7 peak sun hours per day. The city Calgary has more PV potential than Rio de Janeiro, Brazil and Italy, Rome and is only second to Regina in all of Canada. The following table shows yearly PV potential a 1000 Watt PV array.

The yearly PV potential listed above is based on a DC to AC factor of 77% of a centralized inverter. See the following table which has the DC to AC factor for Enphase M215 micro-inverters of 89%. Because the DC circuit length is only 3 feet there is virtually no IR line loss or voltage drop to consider. Further 240 VAC is generated by each micro inverter at the PV module and connected directly to the 240 VAC trunk cable. Micro-invertors with MPPT maximize energy harvest and reliability while minimizing shade effect and module miss-match because each PV module and inverter are independent of each other. One PV module does not affect the PV array like series string configurations and string inverters operating at 400-600 VDC.
Ideally you would like to have your PV array facing directly South (180 degree Azimuth) and have a tilt angle of 45 degrees. However, this is seldom the case. Typically the Azimuth or the PV tilt angle can be off by 30 degrees either way of ideal and you will still generate 90% of the ideal energy harvested.

The solar energy harvested during the day is back fed to your main circuit panel. There are no batteries involved. The utility grid provides storage and capacity. The solar energy harvested that is not consumed by current loads of the residence is then exported out your bi-directional meter to the utility grid. You will only export power when you are generating more energy than you are using. At the end of the month your energy retailer will calculate the net difference between energy consumed from the grid and energy exported back to the grid. Any credit , if any, would be paid by the energy retailer annually. There are many energy retailers available to you.

Yes, as of January 1, 2009, legislature was passed where the energy retailer must buy back exported power at (by minimum) the rate at which the customer pays. If you buy for 8 cents per kilowatt hour you will be paid at 8 cents per kilowatt hour with the utility retailer. It is called Net Billing and requires a Solar PV Utility Interactive system to feed back to the grid. By minimum, all energy retailers will give you the same offer to buy your excess solar energy at the same price they sell to you.
There is ongoing talk on improving the price for solar energy.

  • Protection: A Hedge Against Rising Energy Costs
  • Predictable: Results You Can Bank On
  • Re-sale: Increased Home Value

Thanks to Berkley Labs we finally have a legitimate study on the effects that solar PV has on home values. The study evaluated thousands of homes in California that sold, some with solar and some without, to determine if there was verifiable evidence to support the claim that solar PV adds to the value of your home. They concluded that as little as three kW can add $18,000 to the value of a home. The study landed at somewhere between $3.90 and $6.40 of value for every watt of solar. If people sold cars with all of the fuel costs covered for 20 years who wouldn’t pay a premium for that? That’s effectively what you are doing when you sell a home that has solar PV.

We hear a lot about ROI in the solar industry. People want to know what kind of return they can expect on their solar photovoltaic (PV) system, as it can be a sizable investment. The holy grail of renewable energy is grid parity which can be achieved by either falling installation costs or rising energy prices. To judge this from the financial point of view one has to use ROI. The payback time approach is interesting, but it’s hard to compare the payback time of a PV installation to the ROI of your bank account. ROI allows comparisons on the return of totally different investments.
ROI is a tool, one of many, that helps to evaluate a potential investment and tells one piece of a broader story. What I don’t understand is where ROI is applied, and not applied. Whats the ROI on a tall black coffee on a daily the ROI for this investment would show a poor outcome. Automobiles for example, something that we thousands of dollars for and the moment we drive it off the lot it the value has dropped. Not to mention the continued investment of fuel and upkeep.


http://eetd.lbl.gov/ea/emp/reports/lbnl-4476e.pdf   http://pvcalc.org/pvcalc

This will depend on what your application is and if you are having Greenergy Renewable Energy Ltd perform the installation. All Solar PV electrical work requires an electrical permit and in some instances a building permit is also required. Solar PV Utility interactive systems requires complete documentation, including RPR, SLD, system description with design weight and snow loads and a micro-generation agreement with your energy retailer to buy back your exported solar energy. Greenergy manages documentation submission, permitting and inspections on all our installed packages.

Generally, we can provide quotations, process orders and perform site evaluations within 2-3 days. We are booking installations 2-3 weeks ARO.

Yes, our estimate is firm. Any extra charges will be noted during our site evaluation and include on the estimate.

Most Solar PV installations can be completed in 1-2 days plus the electrical inspection date (following day) and the bi-directional meter replacement which takes place 3-4 weeks after the final electrical inspection.

10% is due at time of order with 80% due on receipt of materials and equipment. The final 10% is due upon completion and receiving final approvals.

Greenergy will provide a dedicated installation crew to work on your installation until it is complete.

Greenergy provides professional Solar Installers and a journeyman electrician to perform your installation. All work is done safely and efficiently with expert workmanship and courtesy. Project managers supervise all installations.

Bring any concerns to our on site project manager who will be able to assist and resolve your concern. If the project manager can not resolve the concern it will be escalated to the president of the company.

We provide a mutually agreeable installation date and perform the installation, generally in 1-2 days.

Ultimately, the customer and inspectors will have the last say. Greenergy endeavors to provide excellent customer service, craftsmanship and expert knowledge to ensure the job is done right. If it’s not right we will make it right.

Once we have performed the site evaluation and you have received your quotation options, you will know the minimum and maximum size of PV array your roof can practically accommodate and which configuration best suits you roof, budget and electrical service. It is really up to you but we can assist in your decision process.

10% is due at time of order with 80% due on receipt of materials and equipment. The final 10% is due upon completion and receiving final approvals.

Yes, Greenergy can provide a long list of satisfied customers and solar installations.

Yes, our solar installations are guaranteed for workmanship for 1 year and we pass on manufacturer’s warranty on equipment. 25 years on modules and micro-inverters.