by ezs | May 1, 2022 | Solar
Introduction
In April 2022 I had a PV system installed, with a local Enphase Envoy as part of the configuration.
The Enphase Envoy acts as a management gateway for the Enphase system. Collecting, storing and forwarding data to Enphase for the consumer Enlighten datapool and application.
My installation consists of an IQ Combiner; but I believe these instructions are valid for any Envoy running software greater than version 7. At the time of writing my Envoy is running D7.0.85.
Some history
I was interested in the raw data coming from the PV system. During vendor selection I reviewed the access and APIs available; and Enphase seemed to have a good mix of capabilities.
At some point in late 2021/early 2022 access to a local Envoy gateway was changed to require a JWT access token. This caused many home automation and data logging integrations to break. The documentation from Enphase showed how to interactively get the token and login. I found no documentation on doing this automatically through code.
After much reading, reviewing multiple blogs and github repos, and trial and error – I have this now working.
Authentication flow
Firstly, there’s a lot of head scratching on this approach from Enphase. Yes – it protects access behind a token, but it’s all intended for interactive work. I can only surmise that the market for this is not the home integrator or API data scraper. I see Enphase pushing that persona towards the Enlighten API v4 – which has a different set of issues (which I’ll write about in the future).
So the flow:
- login, using Enphase username/password, to the Enphase Entrez token service
- get a JWT access token
- post this JWT to the local envoy
- get data
The third step of this, posting the JWT to /auth/check_jwt, does not seem to be documented anywhere.
Also, and most troubling, the JWT itself is returned as part of the body of a html page. Some regex is needed to extract the specific text string. This has risk in the event that the html document structure changes in the future.
I posted a sample PowerShell script here.
Using this approach, I now have data being pulled from the local IQ Combiner, parsed, posted to a NoSQL database, and then graphed.
by ezs | May 1, 2022 | evilzenscientist
COVID-19, the disease caused by the SARS-CoV-2 virus, is not gone. People around the globe are still getting sick, having long term issues from "long COVID", and dying.
However, after 110 weeks of blogging, the news cycle has moved on.
Over 11 billion vaccines and boosters have been given. The global distribution is not fair or equitable.
Vaccination, masking and empathy are polarising, political, issues. The scars will be felt for decades.
So here we are. Over 6 million deaths, multiple waves of disease. Lockdown, disruption, anger, fear.
I predict these events:
- annual combined "flu and Covid" shot by late 2022
- continued politicisation of vaccination, especially in the US
- continued cases across the globe
- emergence of new variants, several of which will break out
- a winter 2022/2023 wave, with no restrictions or mask mandates
On the positive side:
- Covid vaccine development and technology innovation will lead to breakthrough prevention and treatment regimes for multiple diseases
- an approved vaccine for under 5s
- safe, cheap and effective vaccination supply chains across the globe.
Signing off for the final time on this subject.
–Martin
by ezs | May 1, 2022 | evilzenscientist
I honestly forgot to write two weeks of updates. Locally we attended the Seattle International Film Festival, in-person, masked. I received a notification of brief exposure at the Sunday closing event. New cases are still working through the under fives, their teachers, their carers and families.
Globally the number of cases is down 25% week on week.
The Seattle Times dashboard is now gone. Replaced with a trends graphic.
This time 2021 – "concerns about the one variant that breaks out" was a warning around Omicron, six months early.
This time 2020 – drinking disinfectant became a thing, a precursor to all of the other quack remedies. Negative oil prices. Fake anti-lockdown protests.
https://www.theguardian.com/world/series/coronavirus-live
https://www.seattletimes.com/tag/coronavirus/
by ezs | Apr 16, 2022 | evilzenscientist
Weekly summaries from here on out. I’ll share the news links, and comment on anything unusual or newsworthy.
Multiple new variants are spreading quickly. XE, BA.2.12, BA.2.12.2 and others. Widespread numbers of cases still breaking through. Fines issued in UK "Partygate". War, war crimes, and sanctions move the pandemic way beneath the fold. Testing sites, free tests and contact tracing is a fraction of what it was a year ago.
This time 2021 – pandemic fatigue. Weariness of lockdown, masks, regulations. Cases surging across Europe and the US as a result.
This time 2020 – we decided not to attend a Sounders soccer game, which in retrospect was a good move. Kids are in the routine of "school from home".
https://www.theguardian.com/world/series/coronavirus-live
https://www.seattletimes.com/tag/coronavirus/
by ezs | Apr 4, 2022 | evilzenscientist
Weekend – the BA.2 strain is dominant. Locally there are a lot of cases close to home. The Washington State cases have picked up.
Friday – Federal mandate for vaccination is upheld. Masks, vaccination and everything related are starkly political.
Thursday – two years after the panic about PPE, tests and government support for business, the fraud cases are starting to come to court. So much grift, malpractice and just straight theft.
Wednesday – Covid cases soaring in the UK. NHS pressure. Second booster done. Yay.
Tuesday – much concern about Omicron/BA.2 spread in China. Shanghai on lockdown.
Monday – fourth shot/second booster booked for mid-week.
This time 2021 – Washington State picking up new cases. UK emerging from a major wave and lifting restrictions.
This time 2020 – UK NHS at near breaking point. Boris Johnson with Covid. Visible changes: no planes in the sky. Less roadnoise.
https://www.theguardian.com/world/series/coronavirus-live
https://www.seattletimes.com/tag/coronavirus/
by ezs | Mar 31, 2022 | evilzenscientist
Weekend – locally, cases are low, hospitalisations are low, and the general population seems to think the pandemic is over. Anecdotally – Covid is still taking kids out of school.
Friday – as war continues to dominate the news cycles, the continued Omicron surge in South Korea, Hong Kong SAR and PRC is generally unreported. The growing number of cases in the UK and now the US is not getting any attention. Meanwhile the number of hospitalised in the US is at a pandemic low.
Thursday – UK stopping free tests, now similar to US in tests being sold in retail stores.
Wednesday – How to Survive a Pandemic looks to be the latest in documentaries giving narrative of the pandemic.
Tuesday – FDA approves second boosters for 50+. UK Partygate fines issued.
Monday – Shanghai, PRC in lockdown.
This time 2021 – the start of a new wave, Covid spreading faster than vaccination.
This time 2020 – blood draw to see if I had early Covid in January (I did not), lockdowns being relaxed in the US.
https://www.theguardian.com/world/series/coronavirus-live
https://www.seattletimes.com/tag/coronavirus/
by ezs | Mar 23, 2022 | evilzenscientist
Weekend – positive cases are down dramatically since the start of the year. Unclear how many tests are actually being run now. UK cases keep trending up; disastrous timing of all protections being lifted, along with a surge of BA.2. It’s a balancing act to what happens next in the US.
Friday – much discussion about vaccination rates, boosters, a fourth shot – and the timing of any fourth shot. Does this become an annual combination ‘flu and covid’ shot. I mentioned this two years ago.
Thursday – BA.2 keeps popping up as the next variant of concern. The "dance" of the Hammer and The Dance.
Wednesday – US airlines ask for mask mandates in airports and on planes to be lifted.
Tuesday – no funding in the budget for more COVID testing and boosters/vaccinations. BA.2 variant is now 25% of cases in Washington state.
Monday – New covid wave in the UK. Big jumps in positive cases. That peak is as bad as the end of 2021.
This time 2021 – another wave. Spring break, no masks, variants.
This time 2020 – Fauci predicts 100-200k deaths in the US. (it’s now 1M), military field hospitals being built in Seattle, 3.3M file unemployment.
https://www.theguardian.com/world/series/coronavirus-live
https://www.seattletimes.com/tag/coronavirus/
by ezs | Mar 14, 2022 | evilzenscientist
Weekend – The Seattle Times weekly graph – rapidly declining cases, hospitalisations and death rates. Much discussion of a "second booster" or "fourth shot".
Hong Kong death rates are insane. This from The Economist.
Friday – Covid in over 70s in UK at record high. After two years, this is the pandemic that everyone is now forgetting.
Thursday – good listen from The Guardian on the coming wave of Covid.
Wednesday – Canada to drop testing requirement for visitors from the US from April 1.
Tuesday – BA.2 is starting to make news. ~100M people in PRC under lockdown or restrictions. Fourth dose (second booster?) will be needed, Pfizer CEO says an annual shot will be needed. I refer back to my comments from 2020. CDC Wastewater Surveillance System shows 1000% jump in Covid DNA in Seattle wastewater.
Monday – "UK should brace for rising cases", meanwhile all travel restrictions dropped in the UK. BA.2 Omicron variant starting to run fast. PRC locks down Jilin province. Concerns that Sinovac isn’t as effective against omicron and variant. Dropped The Guardian from the daily summaries – but no doubt another raging covid wave will force its return.
This time 2021 – another wave passes across Europe, Washington State following closely. 100M vaccinations in 58 days.
This time 2020 – the start of panic buying amidst FUD and calls for rationing.
https://www.theguardian.com/world/series/coronavirus-live
https://www.seattletimes.com/tag/coronavirus/
by ezs | Mar 12, 2022 | evilzenscientist
Weekend – call for fourth jab in England, Covid cases rising again. Changchun, PRC on lockdown because of surge of Covid.
Locally – mask mandates end this weekend, many businesses still requiring masks and vaccine proof.
Friday – "one third of US Covid child deaths were from omicron". Hong Kong battling huge wave of Covid.
Thursday – Covid building up again in England.
Wednesday – vaccination mandates, mask mandates – ending across the US and Europe. Meanwhile Hong Kong, Israel and others are seeing a fifth wave of Covid.
Tuesday – ah – the variants are coming back. "Deltacron" and BA.2 are starting to enter the vernacular. With war taking the headlines, and a weary populous; this could just be "let it run" – which is a disaster for public health, those sheltering, the immune compromised, and anyone with children under 5.
Monday – good read on the coalition of extreme groups forming across the US.
This time 2021 – vaccination and beating the variants. A year into working from home, and it’s the new normal.
This time 2020 – getting into the groove of weekly blogging with daily news aggregation. Restaurants and bars closing, statewide school closures, large gatherings banned.
https://www.theguardian.com/world/series/coronavirus-live
https://www.seattletimes.com/tag/coronavirus/
by ezs | Mar 2, 2022 | evilzenscientist
When we moved to Issaquah, back in 2008, we moved into a new home. I’ve spent the last 14 years or so researching and tracking the financials, efficiency and availability of photo-voltaic systems. Back in 2008-2010 I spoke at length with several colleagues who had made the early jump, these homebrew solutions came with costs, risks – but happily lots of data.
We are at the point in early 2022 where we have decided to take the plunge and make a major investment in a combined photo-voltaic and battery storage system. This series of blog posts will walk through a lot of our thoughts and decisions, mainly so I can have this for future reference.
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