Net-Zero Requires Integrated Solutions

In the transition to a net-zero-carbon economy, we focus a lot on new technologies, including and especially renewable energy. Those conversations are driven often by those of us with something to sell with self-interest promoting the message. Also, those fascinated by innovation often revel in the discussion. However, there’s one truism that also matters: less is…less.

We’re often silent about “nothing.” Not doing or consuming anything it’s particularly interesting, urgent or compelling. However, an electron that’s never needed is worth at least the same amount of carbon reduction as one generated from a renewable source and used. Yet, we almost ubiquitously still design and operate renewable generation separate and independent from load.

Better, integrated solutions combine renewable energy generation with battery storage and building/load controls to produce and consume electricity more intelligently, efficiently or not at all. For example, EV charging equipment can come with software that controls the rate of charge. Rather than have vehicles charge when they are plugged in at the maximum rate when employees arrive at work in the morning, ramp them slowly with the sun rising and on-premesis solar increasing. Most of the cars will sit there all day anyway. Charge them to minimize the carbon draw from the grid and the associated cost.

Similarly, energy efficiency and planning can reduce consumption, eliminating the need to generate in the first place. Having energy storage aware of current and forecast loads further reduces the 10-20% round-trip losses from converting electricity from DC to AC, AC to DC and back again. If that same office building isn’t going to be occupied, why cool it? If the sun will be shining bright the next day, why store today’s excess in batteries rather than sell it to the grid so others can use it? Simple math about behavior and weather can make an integrated system more efficient, effective and profitable.