The Energy Show: California Requires Solar on all New Homes

The Energy Show: By Barry Cinnamon

California continues to lead the country when it comes to clean and inexpensive energy. Here is an example – In May the California Energy Commission passed a rule that goes into effect on January 1, 2020 that requires solar on all new homes. The rule applies to all new homes, apartments and condos under three stories tall. The rule also includes an option to include an energy storage system (which we believe will become a standard feature with all solar systems).

We have received a number of calls and emails from people both in favor of and against this new rule since it was passed. What we really like about this new rule is that new home buyers will definitely save money. We’ve done hundreds of installations on new homes and the monthly energy savings are always more than the monthly mortgage increase. Always.

According to data from the California Energy Commission, the cost of a new solar system would be an extra $40 per month on a typical mortgage. And that’s without the tax credit. The monthly savings on the homeowner’s electric bill would be $80 per month. So the net monthly savings is $40 per month, or almost $500 per year. So every new home that has solar on it is going to come out almost $500 cash flow positive every year. Based on our installation experiences, I think the CEC’s cost numbers are on the high side and savings number are low – so the benefits are even better. This New Solar Homes Mandate is good for home buyers, and will increase the awareness of solar on existing residential rooftops.

But there are some negatives about this new rule. Some people have a visceral reaction against mandates. They simply don’t want to be told what to do. Moreover, adding solar will slightly increase the cost of a new home. Nevertheless, our government mandates things like seat belts, clean air, new home warranties and energy efficiency. By mandating popular consumer safety and efficiency benefits, costs generally come down for everyone, to the overall benefit of society. For more about California’s New Solar Homes Mandate, Listen Up to this week’s Energy Show.

The Energy Show: What Are The Best Solar Panels?

The Energy Show: By Barry Cinnamon

What are the best solar panels? That’s a question we are asked all the time. When customers look for the “best” solar panels they consider efficiency, reliability, quality and cost. Cost and efficiency are closely related – all solar panels generate the same amount of electricity (kwh) on a per watt basis. Your appliances can’t tell the difference if they get their electrons from super-efficient panels made in the USA, or the cheapest panels made somewhere in Asia.

Nevertheless, there are clear cut differences among solar panels when it comes to aesthetics (all black panels look better), ease of installation (which effectively reduces costs) and cost per watt pricing (especially in light of the tariffs on solar cells and panels). There are also more subjective distinctions such as brand name and perceived reliability. Generally these subjective measures are not based on comparison data or independent laboratory testing, so be wary of manufacturer’s claims.

So which panels are best? Please Listen Up to this week’s Energy Show for our advice for selecting solar panels for your roof. Click on the link below.

The Energy Show – What are Microgrids?

The Energy Show, a podcast by Barry Cinnamon is now available on SolarWakeup

We call our power system an electric “grid” because it is composed of a network of wires that move the power around from node to node – basically a combination of power sources (natural gas power plants, solar farms, nukes), wires (long distance transmission lines and local distribution utility poles) and controls. Microgrids are the same concept but on a much smaller scale.

One example of a microgrid is a complex of buildings on an island. The power plant on an island has historically been a diesel generator, which feeds power to buildings through a smaller network of relatively low voltage wires. More recently these island microgrids have an array of solar panels and batteries providing most of the power, with a backup diesel generator for extreme weather conditions.

New commercial and residential PV and battery storage systems function essentially the same way. These much smaller microgrids provide inexpensive solar power, maximize savings with batteries for when power is expensive, and function in backup power mode if the utility goes down.

The microgrid concept is becoming more popular due to the realization that multiple, linked smaller power grids are more reliable and less expensive than larger centralized grids. Note that microgrids do not carry the high management and investor overhead that utility grids require. These microgrids can also be deployed much more rapidly and take advantage of the latest technology.

Listen up to this week’s Energy Show to learn more about microgrids, and the importance they are playing in the changing landscape of central and distributed energy.

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