Enbala Blog

Adding PV to the grid: It takes more than firming

By Enbala on Oct 19, 2016 9:20:00 AM

If you’re like most people who’ve gone to a conference lately – or read this blog from its inception – you’ve already heard warnings about what could happen to grid voltage and stability when stray clouds waft over neighborhood solar arrays and block PV generation. The sudden drop of renewable power is what many people point to as the key challenge of variable generation resources.

After all, that’s why utilities are looking for ways to “firm” renewable generation, which is the process of backing variable resources up with some combination of fast-ramping power or demand-side management to jump in when power production subsides. But, while loss of power gets most of the attention, over-production is an equally daunting challenge for grid operators.

Read More

Topics: photovoltaic, Solar, DERs, renewable firming, DERMs

Smarter solar: Go West!

By Bud Vos on Nov 18, 2015 6:44:41 PM

Anyone who’s seen the California ISO “Duck Curve” knows south-facing roof-top solar is not particularly good for utilities. The problem, which appears so clearly in the eloquent graph below, is that daily peak continues to grow, so utilities still have to build out new generation, transmission and distribution facilities. But, household solar reduces overall energy sales, and this is where most of the money comes from to pay for the new capacity. Some utilities are referring to this as the “death spiral.”

 

Read More

Topics: photovoltaic, distributed energy resources, Distributed energy resource management, Solar, Solar energy

Subscribe to Blog Updates

Recent Posts

Posts by Topic

see all