Latest articles by The Solar Nerd

Keep up to date on industry news and articles relevant to green living and the solar homeowner.

Photo of a calculator
What is the best way to finance solar panels?
For the fiscally-minded homeowner (and what homeowner doesn’t care about their investment?), adding home solar panels can be a way to add equity to your house, slash electricity costs, and make a great long-term investment. On top of that, you’ll be helping the environment too. Sounds like a no-brainer? Maybe. How much you can actually save with solar panels depends on a few factors. For example, not every roof is equally suited for solar panels.
An photo of a solar panel racking system.
How are solar panels installed on a roof?
The most visible part of a home solar system is the panels. Around 95% of homeowners choose a roof-mounted (rather than ground-mounted) system, so how the panels are attached to the roof is a key detail of the installation. Solar panels are attached to a roof using a mounting system. The most common type is a rail-based system, which uses aluminum rails as the structure onto which the panels and other components, such as wiring and inverter components, are attached.
Illustration of a person cutting a contract
Stuck in a long solar lease contract? Here's what you can do.
As more people realize their disadvantages, solar leases and power purchase agreements (PPAs) are shrinking in popularity, dropping from a high of 59% of the market in 2012 to only 37% in 2019. That’s still a sizeable chunk of the market, and some people regret signing these contracts. With 20 year contracts being common, solar leases can tie you up for a very long time. Many consumers sign them without doing adequate research, especially after being solicited by door-to-door or kiosk salespeople.
Photo illustation of the duck curve
What is the duck curve?
Here’s a super quick crash course on the electric grid: When you plug in a kettle or turn on your air conditioner, you add a little bit of load to the electric grid. This causes the voltage on the grid to drop by a tiny amount. If enough people do that at the same time, the operators of the grid respond by asking power plants to generate more power. This also works the other way: if power plants are cranking out more electricity than customers are using, power plants are asked to dial their power output down, or even shut off completely.
Photo of a house with all-black solar panels.
Latest attack on net metering in California defeated - for now
A revision to net metering rules in California that was working its way through the California Legislature failed to get enough votes on June 2 to move forward, killing the proposal for now. The proposal, Assembly Bill 1139, was authored by state assembly member Lorena Gonzalez and contained several controversial changes to California’s current net metering rules for solar homeowners, most notably: Substantially reducing the credit paid for selling excess solar electricity back to the utility.
Photo of aurora borealis
Will solar panels work after an EMP?
An electromagnetic pulse (EMP) is a burst of electromagnetic energy. Like any magnetic field it’s invisible, but if it’s powerful enough it can knock out electronics or even the power grid. This happens because a moving magnetic field can generate an electrical current in a conductive wire. In fact, this is how a generator works. If you take a really big moving magnetic field and apply it to a really big wire - such as the transmission wires of the electrical grid - the resulting surge of electricity could be large enough to cause widespread damage to power plants, electrical substations, and other major infrastructure.
Photo of a shopping cart full of money.
4 tips on how to get the best deal on solar panels
Everyone likes a good deal, but not everybody knows how to get one. This is especially true of home solar which, for most people, is unfamiliar territory. Fortunately, the way to find a good deal on a home solar installation isn’t a lot different from any other major home renovation project. Read on for some simple tips you can follow before speaking to your local solar installer. Tip 1: Know which incentives are available to you One of the most important things to know as someone shopping for quotes on a home solar installation is the rebates available to you, especially tax incentives.